diff --git a/src/main/java/ru/touchin/roboswag/components/navigation/SimpleViewControllerFragment.java b/src/main/java/ru/touchin/roboswag/components/navigation/SimpleViewControllerFragment.java
index 924c248..ea2b8b1 100644
--- a/src/main/java/ru/touchin/roboswag/components/navigation/SimpleViewControllerFragment.java
+++ b/src/main/java/ru/touchin/roboswag/components/navigation/SimpleViewControllerFragment.java
@@ -25,12 +25,14 @@ import android.support.annotation.Nullable;
 
 import java.io.Serializable;
 
+import ru.touchin.roboswag.components.utils.Logic;
+
 /**
  * Created by Gavriil Sitnikov on 07/03/2016.
  * TODO: fill description
  */
-public class SimpleViewControllerFragment<TState extends Serializable, TLogicBridge, TActivity extends ViewControllerActivity<TLogicBridge>>
-        extends ViewControllerFragment<TState, TLogicBridge, TActivity> {
+public class SimpleViewControllerFragment<TState extends Serializable, TLogic extends Logic, TActivity extends ViewControllerActivity<TLogic>>
+        extends ViewControllerFragment<TState, TLogic, TActivity> {
 
     private static final String VIEW_CONTROLLER_CLASS_EXTRA = "VIEW_CONTROLLER_CLASS_EXTRA";
 
@@ -49,13 +51,13 @@ public class SimpleViewControllerFragment<TState extends Serializable, TLogicBri
         return result;
     }
 
-    private Class<? extends ViewController<TLogicBridge, TActivity,
-            ? extends ViewControllerFragment<TState, TLogicBridge, TActivity>>> viewControllerClass;
+    private Class<? extends ViewController<TLogic, TActivity,
+            ? extends ViewControllerFragment<TState, TLogic, TActivity>>> viewControllerClass;
 
     @NonNull
     @Override
-    public Class<? extends ViewController<TLogicBridge, TActivity,
-            ? extends ViewControllerFragment<TState, TLogicBridge, TActivity>>> getViewControllerClass() {
+    public Class<? extends ViewController<TLogic, TActivity,
+            ? extends ViewControllerFragment<TState, TLogic, TActivity>>> getViewControllerClass() {
         return viewControllerClass;
     }
 
@@ -63,8 +65,8 @@ public class SimpleViewControllerFragment<TState extends Serializable, TLogicBri
     @Override
     public void onCreate(@Nullable final Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        viewControllerClass = (Class<? extends ViewController<TLogicBridge, TActivity,
-                ? extends ViewControllerFragment<TState, TLogicBridge, TActivity>>>) getArguments().getSerializable(VIEW_CONTROLLER_CLASS_EXTRA);
+        viewControllerClass = (Class<? extends ViewController<TLogic, TActivity,
+                ? extends ViewControllerFragment<TState, TLogic, TActivity>>>) getArguments().getSerializable(VIEW_CONTROLLER_CLASS_EXTRA);
     }
 
 }
diff --git a/src/main/java/ru/touchin/roboswag/components/navigation/StatelessViewControllerFragment.java b/src/main/java/ru/touchin/roboswag/components/navigation/StatelessViewControllerFragment.java
index f04cb42..d0751f0 100644
--- a/src/main/java/ru/touchin/roboswag/components/navigation/StatelessViewControllerFragment.java
+++ b/src/main/java/ru/touchin/roboswag/components/navigation/StatelessViewControllerFragment.java
@@ -21,10 +21,12 @@ package ru.touchin.roboswag.components.navigation;
 
 import java.io.Serializable;
 
+import ru.touchin.roboswag.components.utils.Logic;
+
 /**
  * Created by Gavriil Sitnikov on 12/03/2016.
  * TODO: fill description
  */
-public class StatelessViewControllerFragment<TLogicBridge, TActivity extends ViewControllerActivity<TLogicBridge>>
-        extends SimpleViewControllerFragment<Serializable, TLogicBridge, TActivity> {
+public class StatelessViewControllerFragment<TLogic extends Logic, TActivity extends ViewControllerActivity<TLogic>>
+        extends SimpleViewControllerFragment<Serializable, TLogic, TActivity> {
 }
diff --git a/src/main/java/ru/touchin/roboswag/components/navigation/ViewController.java b/src/main/java/ru/touchin/roboswag/components/navigation/ViewController.java
index 903e3a7..bda173b 100644
--- a/src/main/java/ru/touchin/roboswag/components/navigation/ViewController.java
+++ b/src/main/java/ru/touchin/roboswag/components/navigation/ViewController.java
@@ -30,6 +30,7 @@ import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.ViewGroup;
 
+import ru.touchin.roboswag.components.utils.Logic;
 import ru.touchin.roboswag.core.log.Lc;
 import rx.Observable;
 import rx.android.schedulers.AndroidSchedulers;
@@ -39,14 +40,12 @@ import rx.subjects.BehaviorSubject;
  * Created by Gavriil Sitnikov on 21/10/2015.
  * Class to control view of specific fragment, activity and application by logic bridge.
  */
-public class ViewController<TLogicBridge,
-        TActivity extends ViewControllerActivity<TLogicBridge>,
-        TFragment extends ViewControllerFragment<?, TLogicBridge, TActivity>> {
+public class ViewController<TLogic extends Logic,
+        TActivity extends ViewControllerActivity<TLogic>,
+        TFragment extends ViewControllerFragment<?, TLogic, TActivity>> {
 
     private static final String SUPPORT_FRAGMENT_VIEW_STATE_EXTRA = "android:view_state";
 
-    @NonNull
-    private final TLogicBridge logicBridge;
     @NonNull
     private final TActivity activity;
     @NonNull
@@ -56,9 +55,8 @@ public class ViewController<TLogicBridge,
     @NonNull
     private final BehaviorSubject<Boolean> isDestroyedSubject = BehaviorSubject.create(false);
 
-    public ViewController(@NonNull final CreationContext<TLogicBridge, TActivity, TFragment> creationContext,
+    public ViewController(@NonNull final CreationContext<TLogic, TActivity, TFragment> creationContext,
                           @Nullable final Bundle savedInstanceState) {
-        this.logicBridge = creationContext.logicBridge;
         this.activity = creationContext.activity;
         this.fragment = creationContext.fragment;
         this.container = creationContext.container;
@@ -82,19 +80,19 @@ public class ViewController<TLogicBridge,
      * @return {@link Observable} to get restore time to.
      */
     @NonNull
-    protected Observable<Bundle> getRestoreSavedStateObservable(@NonNull final CreationContext<TLogicBridge, TActivity, TFragment> creationContext,
+    protected Observable<Bundle> getRestoreSavedStateObservable(@NonNull final CreationContext<TLogic, TActivity, TFragment> creationContext,
                                                                 @Nullable final Bundle savedInstanceState) {
         return Observable.just(savedInstanceState);
     }
 
     /**
-     * Returns logic bridge to use and affect application logic.
+     * Returns application's logic.
      *
-     * @return Returns logic bridge object.
+     * @return Returns logic;
      */
     @NonNull
-    public TLogicBridge getLogicBridge() {
-        return logicBridge;
+    public TLogic getLogic(){
+        return getActivity().getLogic();
     }
 
     /**
@@ -177,12 +175,10 @@ public class ViewController<TLogicBridge,
     /**
      * Class to simplify constructor override.
      */
-    public static class CreationContext<TLogicBridge,
-            TActivity extends ViewControllerActivity<TLogicBridge>,
-            TFragment extends ViewControllerFragment<?, TLogicBridge, TActivity>> {
+    public static class CreationContext<TLogic extends Logic,
+            TActivity extends ViewControllerActivity<TLogic>,
+            TFragment extends ViewControllerFragment<?, TLogic, TActivity>> {
 
-        @NonNull
-        private final TLogicBridge logicBridge;
         @NonNull
         private final TActivity activity;
         @NonNull
@@ -190,21 +186,14 @@ public class ViewController<TLogicBridge,
         @NonNull
         private final ViewGroup container;
 
-        public CreationContext(@NonNull final TLogicBridge logicBridge,
-                               @NonNull final TActivity activity,
+        public CreationContext(@NonNull final TActivity activity,
                                @NonNull final TFragment fragment,
                                @NonNull final ViewGroup container) {
-            this.logicBridge = logicBridge;
             this.activity = activity;
             this.fragment = fragment;
             this.container = container;
         }
 
-        @NonNull
-        public TLogicBridge getLogicBridge() {
-            return logicBridge;
-        }
-
         @NonNull
         public TActivity getActivity() {
             return activity;
diff --git a/src/main/java/ru/touchin/roboswag/components/navigation/ViewControllerActivity.java b/src/main/java/ru/touchin/roboswag/components/navigation/ViewControllerActivity.java
index a2fda28..3e9c4de 100644
--- a/src/main/java/ru/touchin/roboswag/components/navigation/ViewControllerActivity.java
+++ b/src/main/java/ru/touchin/roboswag/components/navigation/ViewControllerActivity.java
@@ -2,33 +2,29 @@ package ru.touchin.roboswag.components.navigation;
 
 import android.support.annotation.NonNull;
 
-import ru.touchin.roboswag.components.services.LogicService;
-import ru.touchin.roboswag.core.utils.android.RxAndroidUtils;
-import rx.Observable;
+import ru.touchin.roboswag.components.utils.Logic;
 
 /**
  * Created by Gavriil Sitnikov on 07/03/2016.
  * TODO: fill description
  */
-public abstract class ViewControllerActivity<TLogicBridge> extends BaseActivity {
+public abstract class ViewControllerActivity<TLogic extends Logic> extends BaseActivity {
 
     /**
-     * It should return specific Service class where from this fragment should get interface to logic.
+     * It should return specific class where from all logic will be.
      *
-     * @return Returns class of specific LogicService.
+     * @return Returns class of specific Logic.
      */
     @NonNull
-    protected abstract Class<? extends LogicService<TLogicBridge>> getLogicServiceClass();
+    protected abstract Class<TLogic> getLogicClass();
 
     /**
-     * Returns {@link Observable} which will connect to {@link LogicService} and get object of {@link TLogicBridge} type from it.
+     * Returns or creates application's logic.
      *
-     * @return {@link Observable} which will provide changes of object of type {@link TLogicBridge};
+     * @return Object which represents application's logic.
      */
-    @NonNull
-    public Observable<TLogicBridge> observeLogicBridge() {
-        return RxAndroidUtils.observeService(this, getLogicServiceClass())
-                .map(service -> service != null ? service.getLogicBridge() : null);
+    public TLogic getLogic() {
+        return Logic.getInstance(this, getLogicClass());
     }
 
 }
diff --git a/src/main/java/ru/touchin/roboswag/components/navigation/ViewControllerFragment.java b/src/main/java/ru/touchin/roboswag/components/navigation/ViewControllerFragment.java
index 3bb5e83..cdc465d 100644
--- a/src/main/java/ru/touchin/roboswag/components/navigation/ViewControllerFragment.java
+++ b/src/main/java/ru/touchin/roboswag/components/navigation/ViewControllerFragment.java
@@ -35,11 +35,11 @@ import android.widget.FrameLayout;
 import java.io.Serializable;
 import java.lang.reflect.Constructor;
 
+import ru.touchin.roboswag.components.utils.Logic;
 import ru.touchin.roboswag.core.log.Lc;
 import ru.touchin.roboswag.core.utils.ShouldNotHappenException;
 import rx.Observable;
 import rx.Subscription;
-import rx.android.schedulers.AndroidSchedulers;
 import rx.exceptions.OnErrorThrowable;
 import rx.subjects.BehaviorSubject;
 
@@ -47,7 +47,7 @@ import rx.subjects.BehaviorSubject;
  * Created by Gavriil Sitnikov on 21/10/2015.
  * Fragment instantiated in specific activity of {@link TActivity} type that is holding {@link ViewController} inside.
  */
-public abstract class ViewControllerFragment<TState extends Serializable, TLogicBridge, TActivity extends ViewControllerActivity<TLogicBridge>>
+public abstract class ViewControllerFragment<TState extends Serializable, TLogic extends Logic, TActivity extends ViewControllerActivity<TLogic>>
         extends ViewFragment<TActivity> {
 
     private static final String VIEW_CONTROLLER_STATE_EXTRA = "VIEW_CONTROLLER_STATE_EXTRA";
@@ -82,13 +82,13 @@ public abstract class ViewControllerFragment<TState extends Serializable, TLogic
     }
 
     /**
-     * It should return specific ViewController class to control instantiated view by logic bridge after activity creation.
+     * It should return specific ViewController class to control instantiated view by logic after activity creation.
      *
      * @return Returns class of specific ViewController.
      */
     @NonNull
-    public abstract Class<? extends ViewController<TLogicBridge, TActivity,
-            ? extends ViewControllerFragment<TState, TLogicBridge, TActivity>>> getViewControllerClass();
+    public abstract Class<? extends ViewController<TLogic, TActivity,
+            ? extends ViewControllerFragment<TState, TLogic, TActivity>>> getViewControllerClass();
 
     @SuppressWarnings("unchecked")
     @Override
@@ -110,21 +110,13 @@ public abstract class ViewControllerFragment<TState extends Serializable, TLogic
 
     @NonNull
     private Observable<ViewController> createViewControllerObservable() {
-        return Observable
-                .combineLatest(activitySubject
-                                .switchMap(activity -> activity != null ? activity.observeLogicBridge() : Observable.just(null))
-                                .distinctUntilChanged()
-                                .observeOn(AndroidSchedulers.mainThread()),
-                        activitySubject.distinctUntilChanged().observeOn(AndroidSchedulers.mainThread()),
-                        viewSubject.distinctUntilChanged().observeOn(AndroidSchedulers.mainThread()),
-                        this::getViewController);
+        return Observable.combineLatest(activitySubject.distinctUntilChanged(), viewSubject.distinctUntilChanged(), this::createViewController);
     }
 
     @Nullable
-    private ViewController getViewController(@Nullable final TLogicBridge logicBridge,
-                                             @Nullable final TActivity activity,
-                                             @Nullable final Pair<PlaceholderView, Bundle> viewInfo) {
-        if (logicBridge == null || activity == null || viewInfo == null) {
+    private ViewController createViewController(@Nullable final TActivity activity,
+                                                @Nullable final Pair<PlaceholderView, Bundle> viewInfo) {
+        if (activity == null || viewInfo == null) {
             return null;
         }
 
@@ -132,9 +124,9 @@ public abstract class ViewControllerFragment<TState extends Serializable, TLogic
             throw OnErrorThrowable.from(new ShouldNotHappenException("There should be single constructor for " + getViewControllerClass()));
         }
         final Constructor<?> constructor = getViewControllerClass().getConstructors()[0];
-        final ViewController.CreationContext<TLogicBridge, TActivity,
-                ? extends ViewControllerFragment<TState, TLogicBridge, TActivity>> creationContext
-                = new ViewController.CreationContext<>(logicBridge, activity, this, viewInfo.first);
+        final ViewController.CreationContext<TLogic, TActivity,
+                ? extends ViewControllerFragment<TState, TLogic, TActivity>> creationContext
+                = new ViewController.CreationContext<>(activity, this, viewInfo.first);
         try {
             switch (constructor.getParameterTypes().length) {
                 case 2:
@@ -193,10 +185,9 @@ public abstract class ViewControllerFragment<TState extends Serializable, TLogic
             this.viewController.onDestroy();
         }
         this.viewController = viewController;
-        if (this.viewController == null) {
-            return;
+        if (this.viewController != null) {
+            this.viewController.getActivity().supportInvalidateOptionsMenu();
         }
-        viewController.getActivity().supportInvalidateOptionsMenu();
     }
 
     @Override
diff --git a/src/main/java/ru/touchin/roboswag/components/navigation/ViewControllerNavigation.java b/src/main/java/ru/touchin/roboswag/components/navigation/ViewControllerNavigation.java
index 97cd89a..2e7caa6 100644
--- a/src/main/java/ru/touchin/roboswag/components/navigation/ViewControllerNavigation.java
+++ b/src/main/java/ru/touchin/roboswag/components/navigation/ViewControllerNavigation.java
@@ -9,44 +9,45 @@ import android.support.v4.app.FragmentTransaction;
 
 import java.io.Serializable;
 
+import ru.touchin.roboswag.components.utils.Logic;
 import rx.functions.Func1;
 
 /**
  * Created by Gavriil Sitnikov on 07/03/2016.
  * TODO: fill description
  */
-public class ViewControllerNavigation<TLogicBridge> extends FragmentNavigation {
+public class ViewControllerNavigation<TLogic extends Logic> extends FragmentNavigation {
 
     @SuppressWarnings("CPD-START")
-    public ViewControllerNavigation(@NonNull final ViewControllerActivity<TLogicBridge> context,
+    public ViewControllerNavigation(@NonNull final ViewControllerActivity<TLogic> context,
                                     @NonNull final FragmentManager fragmentManager,
                                     @IdRes final int containerViewId) {
         super(context, fragmentManager, containerViewId);
     }
 
-    public <TState extends Serializable> void push(@NonNull final Class<? extends ViewControllerFragment<TState, TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>>> fragmentClass,
+    public <TState extends Serializable> void push(@NonNull final Class<? extends ViewControllerFragment<TState, TLogic,
+            ? extends ViewControllerActivity<TLogic>>> fragmentClass,
                                                    @NonNull final TState state) {
         addToStack(fragmentClass, null, ViewControllerFragment.createState(state), null, null);
     }
 
-    public <TState extends Serializable> void push(@NonNull final Class<? extends ViewControllerFragment<TState, TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>>> fragmentClass,
+    public <TState extends Serializable> void push(@NonNull final Class<? extends ViewControllerFragment<TState, TLogic,
+            ? extends ViewControllerActivity<TLogic>>> fragmentClass,
                                                    @Nullable final TState state,
                                                    @Nullable final Func1<FragmentTransaction, FragmentTransaction> transactionSetup) {
         addToStack(fragmentClass, null, ViewControllerFragment.createState(state), null, transactionSetup);
     }
 
-    public <TState extends Serializable> void pushForResult(@NonNull final Class<? extends ViewControllerFragment<TState, TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>>> fragmentClass,
+    public <TState extends Serializable> void pushForResult(@NonNull final Class<? extends ViewControllerFragment<TState, TLogic,
+            ? extends ViewControllerActivity<TLogic>>> fragmentClass,
                                                             @NonNull final Fragment targetFragment,
                                                             @NonNull final TState state) {
         addToStack(fragmentClass, targetFragment, ViewControllerFragment.createState(state), fragmentClass.getName() + ';'
                 + WITH_TARGET_FRAGMENT_TAG_MARK, null);
     }
 
-    public <TState extends Serializable> void pushForResult(@NonNull final Class<? extends ViewControllerFragment<TState, TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>>> fragmentClass,
+    public <TState extends Serializable> void pushForResult(@NonNull final Class<? extends ViewControllerFragment<TState, TLogic,
+            ? extends ViewControllerActivity<TLogic>>> fragmentClass,
                                                             @NonNull final Fragment targetFragment,
                                                             @Nullable final TState state,
                                                             @Nullable final Func1<FragmentTransaction, FragmentTransaction> transactionSetup) {
@@ -54,73 +55,73 @@ public class ViewControllerNavigation<TLogicBridge> extends FragmentNavigation {
                 + WITH_TARGET_FRAGMENT_TAG_MARK, transactionSetup);
     }
 
-    public <TState extends Serializable> void setAsTop(@NonNull final Class<? extends ViewControllerFragment<TState, TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>>> fragmentClass,
+    public <TState extends Serializable> void setAsTop(@NonNull final Class<? extends ViewControllerFragment<TState, TLogic,
+            ? extends ViewControllerActivity<TLogic>>> fragmentClass,
                                                        @NonNull final TState state) {
         setAsTop(fragmentClass, ViewControllerFragment.createState(state), null);
     }
 
-    public <TState extends Serializable> void setAsTop(@NonNull final Class<? extends ViewControllerFragment<TState, TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>>> fragmentClass,
+    public <TState extends Serializable> void setAsTop(@NonNull final Class<? extends ViewControllerFragment<TState, TLogic,
+            ? extends ViewControllerActivity<TLogic>>> fragmentClass,
                                                        @Nullable final TState state,
                                                        @Nullable final Func1<FragmentTransaction, FragmentTransaction> transactionSetup) {
         setAsTop(fragmentClass, ViewControllerFragment.createState(state), transactionSetup);
     }
 
-    public <TState extends Serializable> void setInitial(@NonNull final Class<? extends ViewControllerFragment<TState, TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>>> fragmentClass,
+    public <TState extends Serializable> void setInitial(@NonNull final Class<? extends ViewControllerFragment<TState, TLogic,
+            ? extends ViewControllerActivity<TLogic>>> fragmentClass,
                                                          @NonNull final TState state) {
         setInitial(fragmentClass, ViewControllerFragment.createState(state), null);
     }
 
-    public <TState extends Serializable> void setInitial(@NonNull final Class<? extends ViewControllerFragment<TState, TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>>> fragmentClass,
+    public <TState extends Serializable> void setInitial(@NonNull final Class<? extends ViewControllerFragment<TState, TLogic,
+            ? extends ViewControllerActivity<TLogic>>> fragmentClass,
                                                          @Nullable final TState state,
                                                          @Nullable final Func1<FragmentTransaction, FragmentTransaction> transactionSetup) {
         setInitial(fragmentClass, ViewControllerFragment.createState(state), transactionSetup);
     }
 
-    public void pushViewController(@NonNull final Class<? extends ViewController<TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>,
-            ? extends StatelessViewControllerFragment<TLogicBridge, ? extends ViewControllerActivity<TLogicBridge>>>> viewControllerClass) {
+    public void pushViewController(@NonNull final Class<? extends ViewController<TLogic,
+            ? extends ViewControllerActivity<TLogic>,
+            ? extends StatelessViewControllerFragment<TLogic, ? extends ViewControllerActivity<TLogic>>>> viewControllerClass) {
         addStatelessViewControllerToStack(viewControllerClass, null, null, null);
     }
 
-    public <TState extends Serializable> void pushViewController(@NonNull final Class<? extends ViewController<TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>,
-            ? extends SimpleViewControllerFragment<TState, TLogicBridge, ? extends ViewControllerActivity<TLogicBridge>>>> viewControllerClass,
+    public <TState extends Serializable> void pushViewController(@NonNull final Class<? extends ViewController<TLogic,
+            ? extends ViewControllerActivity<TLogic>,
+            ? extends SimpleViewControllerFragment<TState, TLogic, ? extends ViewControllerActivity<TLogic>>>> viewControllerClass,
                                                                  @NonNull final TState state) {
         addViewControllerToStack(viewControllerClass, null, state, null, null);
     }
 
-    public <TState extends Serializable> void pushViewController(@NonNull final Class<? extends ViewController<TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>,
-            ? extends SimpleViewControllerFragment<TState, TLogicBridge, ? extends ViewControllerActivity<TLogicBridge>>>> viewControllerClass,
+    public <TState extends Serializable> void pushViewController(@NonNull final Class<? extends ViewController<TLogic,
+            ? extends ViewControllerActivity<TLogic>,
+            ? extends SimpleViewControllerFragment<TState, TLogic, ? extends ViewControllerActivity<TLogic>>>> viewControllerClass,
                                                                  @Nullable final TState state,
                                                                  @Nullable final Func1<FragmentTransaction, FragmentTransaction> transactionSetup) {
         addViewControllerToStack(viewControllerClass, null, state, null, transactionSetup);
     }
 
-    public void pushViewControllerForResult(@NonNull final Class<? extends ViewController<TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>,
-            ? extends StatelessViewControllerFragment<TLogicBridge, ? extends ViewControllerActivity<TLogicBridge>>>> viewControllerClass,
+    public void pushViewControllerForResult(@NonNull final Class<? extends ViewController<TLogic,
+            ? extends ViewControllerActivity<TLogic>,
+            ? extends StatelessViewControllerFragment<TLogic, ? extends ViewControllerActivity<TLogic>>>> viewControllerClass,
                                             @NonNull final Fragment targetFragment) {
         addStatelessViewControllerToStack(viewControllerClass, targetFragment,
                 viewControllerClass.getName() + ';' + WITH_TARGET_FRAGMENT_TAG_MARK, null);
     }
 
-    public <TState extends Serializable> void pushViewControllerForResult(@NonNull final Class<? extends ViewController<TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>,
-            ? extends SimpleViewControllerFragment<TState, TLogicBridge, ? extends ViewControllerActivity<TLogicBridge>>>> viewControllerClass,
+    public <TState extends Serializable> void pushViewControllerForResult(@NonNull final Class<? extends ViewController<TLogic,
+            ? extends ViewControllerActivity<TLogic>,
+            ? extends SimpleViewControllerFragment<TState, TLogic, ? extends ViewControllerActivity<TLogic>>>> viewControllerClass,
                                                                           @NonNull final Fragment targetFragment,
                                                                           @NonNull final TState state) {
         addViewControllerToStack(viewControllerClass, targetFragment, state, viewControllerClass.getName() + ';'
                 + WITH_TARGET_FRAGMENT_TAG_MARK, null);
     }
 
-    public <TState extends Serializable> void pushViewControllerForResult(@NonNull final Class<? extends ViewController<TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>,
-            ? extends SimpleViewControllerFragment<TState, TLogicBridge, ? extends ViewControllerActivity<TLogicBridge>>>> viewControllerClass,
+    public <TState extends Serializable> void pushViewControllerForResult(@NonNull final Class<? extends ViewController<TLogic,
+            ? extends ViewControllerActivity<TLogic>,
+            ? extends SimpleViewControllerFragment<TState, TLogic, ? extends ViewControllerActivity<TLogic>>>> viewControllerClass,
                                                                           @NonNull final Fragment targetFragment,
                                                                           @Nullable final TState state,
                                                                           @Nullable final Func1<FragmentTransaction, FragmentTransaction>
@@ -129,45 +130,45 @@ public class ViewControllerNavigation<TLogicBridge> extends FragmentNavigation {
                 + WITH_TARGET_FRAGMENT_TAG_MARK, transactionSetup);
     }
 
-    public void setViewControllerAsTop(@NonNull final Class<? extends ViewController<TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>,
-            ? extends StatelessViewControllerFragment<TLogicBridge, ? extends ViewControllerActivity<TLogicBridge>>>> viewControllerClass) {
+    public void setViewControllerAsTop(@NonNull final Class<? extends ViewController<TLogic,
+            ? extends ViewControllerActivity<TLogic>,
+            ? extends StatelessViewControllerFragment<TLogic, ? extends ViewControllerActivity<TLogic>>>> viewControllerClass) {
         addStatelessViewControllerToStack(viewControllerClass, null, viewControllerClass.getName() + ' ' + TOP_FRAGMENT_TAG_MARK, null);
     }
 
-    public <TState extends Serializable> void setViewControllerAsTop(@NonNull final Class<? extends ViewController<TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>,
-            ? extends SimpleViewControllerFragment<TState, TLogicBridge, ? extends ViewControllerActivity<TLogicBridge>>>> viewControllerClass,
+    public <TState extends Serializable> void setViewControllerAsTop(@NonNull final Class<? extends ViewController<TLogic,
+            ? extends ViewControllerActivity<TLogic>,
+            ? extends SimpleViewControllerFragment<TState, TLogic, ? extends ViewControllerActivity<TLogic>>>> viewControllerClass,
                                                                      @NonNull final TState state) {
         addViewControllerToStack(viewControllerClass, null, state, viewControllerClass.getName() + ' ' + TOP_FRAGMENT_TAG_MARK, null);
     }
 
-    public <TState extends Serializable> void setViewControllerAsTop(@NonNull final Class<? extends ViewController<TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>,
-            ? extends SimpleViewControllerFragment<TState, TLogicBridge, ? extends ViewControllerActivity<TLogicBridge>>>> viewControllerClass,
+    public <TState extends Serializable> void setViewControllerAsTop(@NonNull final Class<? extends ViewController<TLogic,
+            ? extends ViewControllerActivity<TLogic>,
+            ? extends SimpleViewControllerFragment<TState, TLogic, ? extends ViewControllerActivity<TLogic>>>> viewControllerClass,
                                                                      @Nullable final TState state,
                                                                      @Nullable final Func1<FragmentTransaction, FragmentTransaction>
                                                                              transactionSetup) {
         addViewControllerToStack(viewControllerClass, null, state, viewControllerClass.getName() + ' ' + TOP_FRAGMENT_TAG_MARK, transactionSetup);
     }
 
-    public void setInitialViewController(@NonNull final Class<? extends ViewController<TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>,
-            ? extends StatelessViewControllerFragment<TLogicBridge, ? extends ViewControllerActivity<TLogicBridge>>>> viewControllerClass) {
+    public void setInitialViewController(@NonNull final Class<? extends ViewController<TLogic,
+            ? extends ViewControllerActivity<TLogic>,
+            ? extends StatelessViewControllerFragment<TLogic, ? extends ViewControllerActivity<TLogic>>>> viewControllerClass) {
         beforeSetInitialActions();
         setViewControllerAsTop(viewControllerClass);
     }
 
-    public <TState extends Serializable> void setInitialViewController(@NonNull final Class<? extends ViewController<TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>,
-            ? extends SimpleViewControllerFragment<TState, TLogicBridge, ? extends ViewControllerActivity<TLogicBridge>>>> viewControllerClass,
+    public <TState extends Serializable> void setInitialViewController(@NonNull final Class<? extends ViewController<TLogic,
+            ? extends ViewControllerActivity<TLogic>,
+            ? extends SimpleViewControllerFragment<TState, TLogic, ? extends ViewControllerActivity<TLogic>>>> viewControllerClass,
                                                                        @NonNull final TState state) {
         setInitialViewController(viewControllerClass, state, null);
     }
 
-    public <TState extends Serializable> void setInitialViewController(@NonNull final Class<? extends ViewController<TLogicBridge,
-            ? extends ViewControllerActivity<TLogicBridge>,
-            ? extends SimpleViewControllerFragment<TState, TLogicBridge, ? extends ViewControllerActivity<TLogicBridge>>>> viewControllerClass,
+    public <TState extends Serializable> void setInitialViewController(@NonNull final Class<? extends ViewController<TLogic,
+            ? extends ViewControllerActivity<TLogic>,
+            ? extends SimpleViewControllerFragment<TState, TLogic, ? extends ViewControllerActivity<TLogic>>>> viewControllerClass,
                                                                        @Nullable final TState state,
                                                                        @Nullable final Func1<FragmentTransaction, FragmentTransaction>
                                                                                transactionSetup) {
@@ -176,7 +177,7 @@ public class ViewControllerNavigation<TLogicBridge> extends FragmentNavigation {
     }
 
     protected <TState extends Serializable> void addViewControllerToStack(
-            @NonNull final Class<? extends ViewController<TLogicBridge, ? extends ViewControllerActivity<TLogicBridge>, ?>> viewControllerClass,
+            @NonNull final Class<? extends ViewController<TLogic, ? extends ViewControllerActivity<TLogic>, ?>> viewControllerClass,
             @Nullable final Fragment targetFragment,
             @Nullable final TState state,
             @Nullable final String backStackTag,
@@ -187,7 +188,7 @@ public class ViewControllerNavigation<TLogicBridge> extends FragmentNavigation {
 
     @SuppressWarnings("CPD-END")
     protected <TState extends Serializable> void addStatelessViewControllerToStack(
-            @NonNull final Class<? extends ViewController<TLogicBridge, ? extends ViewControllerActivity<TLogicBridge>, ?>> viewControllerClass,
+            @NonNull final Class<? extends ViewController<TLogic, ? extends ViewControllerActivity<TLogic>, ?>> viewControllerClass,
             @Nullable final Fragment targetFragment,
             @Nullable final String backStackTag,
             @Nullable final Func1<FragmentTransaction, FragmentTransaction> transactionSetup) {
diff --git a/src/main/java/ru/touchin/roboswag/components/services/LogicService.java b/src/main/java/ru/touchin/roboswag/components/services/LogicService.java
deleted file mode 100644
index 9550777..0000000
--- a/src/main/java/ru/touchin/roboswag/components/services/LogicService.java
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- *  Copyright (c) 2015 RoboSwag (Gavriil Sitnikov, Vsevolod Ivanov)
- *
- *  This file is part of RoboSwag library.
- *
- *  Licensed under the Apache License, Version 2.0 (the "License");
- *  you may not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS,
- *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- */
-
-package ru.touchin.roboswag.components.services;
-
-import android.app.IntentService;
-import android.content.Intent;
-import android.os.IBinder;
-
-import ru.touchin.roboswag.core.utils.android.ServiceBinder;
-
-/**
- * Created by Gavriil Sitnikov on 10/01/2016.
- * Service which holds interface to all application's logic objects and methods.
- * Any part of application should interact with some part of logic via this interface.
- * If it is Service, Activity, Fragment or view then it should bind itself to that service first then get service and logic bridge from IBinder.
- * If it is BroadcastReceiver then it should start service which can bind to that service or just send some intent to that service.
- * [phase 1]
- */
-public abstract class LogicService<TLogicBridge> extends IntentService {
-
-    private TLogicBridge logicBridge;
-
-    protected LogicService() {
-        super("LogicService");
-    }
-
-    @Override
-    public void onCreate() {
-        super.onCreate();
-        this.logicBridge = createLogicBridge();
-    }
-
-    @Override
-    protected void onHandleIntent(final Intent intent) {
-        // do nothing
-    }
-
-    /**
-     * Creates object which will provide all logic methods and objects of application.
-     * Any other activity, fragment or service should bind to that service to get logic bridge and start interact with application's logic.
-     * Do not initialize massive objects during creation as this operation is calling on UI thread.
-     *
-     * @return Returns instantiated logic bridge.
-     */
-    protected abstract TLogicBridge createLogicBridge();
-
-    /**
-     * Returns interface to application's logic.
-     *
-     * @return Returns logic bridge object.
-     */
-    public TLogicBridge getLogicBridge() {
-        return logicBridge;
-    }
-
-    @Override
-    public IBinder onBind(final Intent intent) {
-        return new ServiceBinder<>(this);
-    }
-
-}
diff --git a/src/main/java/ru/touchin/roboswag/components/utils/Logic.java b/src/main/java/ru/touchin/roboswag/components/utils/Logic.java
new file mode 100644
index 0000000..48dcac7
--- /dev/null
+++ b/src/main/java/ru/touchin/roboswag/components/utils/Logic.java
@@ -0,0 +1,51 @@
+package ru.touchin.roboswag.components.utils;
+
+import android.content.Context;
+import android.support.annotation.NonNull;
+
+import java.lang.ref.WeakReference;
+import java.lang.reflect.Constructor;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Created by Gavriil Sitnikov on 24/03/16.
+ * TODO: description
+ */
+public abstract class Logic {
+
+    private final static Map<Class<? extends Logic>, WeakReference<Logic>> LOGIC_INSTANCES = new HashMap<>();
+
+    @SuppressWarnings("unchecked")
+    @NonNull
+    public static <T extends Logic> T getInstance(@NonNull final Context context, @NonNull final Class<T> logicClass) {
+        T result;
+        synchronized (LOGIC_INSTANCES) {
+            final WeakReference<Logic> reference = LOGIC_INSTANCES.get(logicClass);
+            result = reference != null ? (T) reference.get() : null;
+            if (result == null) {
+                result = constructLogic(context.getApplicationContext(), logicClass);
+                LOGIC_INSTANCES.put(logicClass, new WeakReference<>(result));
+            }
+        }
+        return result;
+    }
+
+    @SuppressWarnings("unchecked")
+    private static <T extends Logic> T constructLogic(@NonNull final Context context, @NonNull final Class<T> logicClass) {
+        if (logicClass.getConstructors().length != 1 || logicClass.getConstructors()[0].getParameterTypes().length != 1) {
+            throw new IllegalArgumentException("There should be only one public constructor(Context) for class " + logicClass);
+        }
+        final Constructor<?> constructor = logicClass.getConstructors()[0];
+        try {
+            return (T) constructor.newInstance(context);
+        } catch (final Exception exception) {
+            throw new IllegalStateException(exception);
+        }
+    }
+
+    public Logic(@NonNull final Context context) {
+        //do nothing
+    }
+
+}