diff --git a/app/src/main/java/fr/openium/consentium/ui/navigation/DemoNavGraph.kt b/app/src/main/java/fr/openium/consentium/ui/navigation/DemoNavGraph.kt
index 8a85499..d02d92b 100644
--- a/app/src/main/java/fr/openium/consentium/ui/navigation/DemoNavGraph.kt
+++ b/app/src/main/java/fr/openium/consentium/ui/navigation/DemoNavGraph.kt
@@ -1,3 +1,5 @@
+import androidx.compose.animation.EnterTransition
+import androidx.compose.animation.ExitTransition
 import androidx.compose.animation.core.tween
 import androidx.compose.animation.slideIn
 import androidx.compose.animation.slideOut
@@ -32,27 +34,62 @@ import fr.openium.consentium_ui.ui.model.ConsentiumPageUI
 
 private const val NAV_ANIMATION_TIME = 500
 
+private val SLIDE_IN_FROM_RIGHT_ENTER_TRANSITION = slideIn(
+    animationSpec = tween(NAV_ANIMATION_TIME),
+    initialOffset = { fullSize -> IntOffset(x = fullSize.height, y = 0) }
+)
+
+private val SLIDE_IN_FROM_LEFT_ENTER_TRANSITION = slideIn(
+    animationSpec = tween(NAV_ANIMATION_TIME),
+    initialOffset = { fullSize -> IntOffset(x = -fullSize.height, y = 0) }
+)
+
+private val SLIDE_OUT_TO_LEFT_EXIT_TRANSITION = slideOut(
+    animationSpec = tween(NAV_ANIMATION_TIME),
+    targetOffset = { fullSize -> IntOffset(x = -fullSize.height, y = 0) }
+)
+
+private val SLIDE_OUT_TO_RIGHT_EXIT_TRANSITION = slideOut(
+    animationSpec = tween(NAV_ANIMATION_TIME),
+    targetOffset = { fullSize -> IntOffset(x = fullSize.height, y = 0) }
+)
+
+private infix fun String?.ifIn(destinations: List<Destination>): Boolean {
+    return this in destinations.map { it::class.qualifiedName }
+}
+
+private infix fun Boolean.thenTransitionWith(transition: EnterTransition): EnterTransition? {
+    return if (this) transition else null
+}
+
+private infix fun EnterTransition?.elseTransitionWith(transition: EnterTransition): EnterTransition {
+    return this ?: transition
+}
+
+private infix fun Boolean.thenTransitionWith(transition: ExitTransition): ExitTransition? {
+    return if (this) transition else null
+}
+
+private infix fun ExitTransition?.elseTransitionWith(transition: ExitTransition): ExitTransition {
+    return this ?: transition
+}
+
 @Composable
 fun DemoNavGraph(navHostController: NavHostController) {
 
     NavHost(
         navController = navHostController,
         startDestination = Destination.Splash,
-        enterTransition = {
-            slideIn(
-                animationSpec = tween(NAV_ANIMATION_TIME),
-                initialOffset = { fullSize -> IntOffset(x = fullSize.height, y = 0) }
-            )
-        },
-        exitTransition = {
-            slideOut(
-                animationSpec = tween(NAV_ANIMATION_TIME),
-                targetOffset = { fullSize -> IntOffset(x = -fullSize.height, y = 0) }
-            )
-        },
     ) {
 
-        composable<Destination.Splash> {
+        composable<Destination.Splash>(
+            enterTransition = {
+                SLIDE_IN_FROM_RIGHT_ENTER_TRANSITION
+            },
+            exitTransition = {
+                SLIDE_OUT_TO_LEFT_EXIT_TRANSITION
+            }
+        ) {
             SplashScreen(
                 navigateToMain = {
                     navHostController.navigate(Destination.Main) {
@@ -67,7 +104,18 @@ fun DemoNavGraph(navHostController: NavHostController) {
             )
         }
 
-        composable<Destination.Main> {
+        composable<Destination.Main>(
+            enterTransition = {
+                initialState.destination.route ifIn listOf(
+                    Destination.Splash
+                ) thenTransitionWith SLIDE_IN_FROM_RIGHT_ENTER_TRANSITION elseTransitionWith SLIDE_IN_FROM_LEFT_ENTER_TRANSITION
+            },
+            exitTransition = {
+                targetState.destination.route ifIn listOf(
+                    Destination.Splash
+                ) thenTransitionWith SLIDE_OUT_TO_RIGHT_EXIT_TRANSITION elseTransitionWith SLIDE_OUT_TO_LEFT_EXIT_TRANSITION
+            }
+        ) {
             MainScreen(
                 onGoToConsentMaster = {
                     navHostController.navigate(Destination.Consent(ConsentiumPageUI.GENERAL_CONSENT))
@@ -78,7 +126,20 @@ fun DemoNavGraph(navHostController: NavHostController) {
             )
         }
 
-        composable<Destination.Consent> { backStackEntry ->
+        composable<Destination.Consent>(
+            enterTransition = {
+                initialState.destination.route ifIn listOf(
+                    Destination.Splash,
+                    Destination.Main,
+                ) thenTransitionWith SLIDE_IN_FROM_RIGHT_ENTER_TRANSITION elseTransitionWith SLIDE_IN_FROM_LEFT_ENTER_TRANSITION
+            },
+            exitTransition = {
+                targetState.destination.route ifIn listOf(
+                    Destination.Splash,
+                    Destination.Main,
+                ) thenTransitionWith SLIDE_OUT_TO_RIGHT_EXIT_TRANSITION elseTransitionWith SLIDE_OUT_TO_LEFT_EXIT_TRANSITION
+            }
+        ) { backStackEntry ->
             val consent = backStackEntry.toRoute<Destination.Consent>()
 
             val appId = stringResource(R.string.app_id)
diff --git a/app/src/main/java/fr/openium/consentium/ui/screens/splash/SplashScreen.kt b/app/src/main/java/fr/openium/consentium/ui/screens/splash/SplashScreen.kt
index db200c0..10411d7 100644
--- a/app/src/main/java/fr/openium/consentium/ui/screens/splash/SplashScreen.kt
+++ b/app/src/main/java/fr/openium/consentium/ui/screens/splash/SplashScreen.kt
@@ -18,6 +18,7 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import fr.openium.consentium.R
 import fr.openium.consentium.api.Consentium
+import fr.openium.consentium.api.checkPurposeState
 import fr.openium.consentium.api.state.FetchConsentiumState
 
 @Composable
@@ -51,6 +52,22 @@ fun SplashScreen(
 
                 is FetchConsentiumState.Valid -> {
                     // The tracking services should be initialized here
+                    val consents = consentState.purposes
+
+                    consents.checkPurposeState("analytics") { consentState ->
+                        // Initialize analytics
+
+                    }
+
+                    consents.checkPurposeState("ads") { consentState ->
+                        // Initialize ads
+                    }
+
+                    consents.checkPurposeState("matomo") { consentState ->
+                        // Initialize push
+                    }
+
+                    // Navigate on completion
                     navigateToMain()
                 }
             }
diff --git a/consentium/src/main/java/fr/openium/consentium/api/Consentium.kt b/consentium/src/main/java/fr/openium/consentium/api/Consentium.kt
index 60e1bc8..2b7f58d 100644
--- a/consentium/src/main/java/fr/openium/consentium/api/Consentium.kt
+++ b/consentium/src/main/java/fr/openium/consentium/api/Consentium.kt
@@ -3,7 +3,9 @@ package fr.openium.consentium.api
 import android.content.Context
 import dagger.hilt.android.EntryPointAccessors
 import fr.openium.consentium.api.model.ConsentState
+import fr.openium.consentium.api.model.Purpose
 import fr.openium.consentium.api.model.PurposeChoice
+import fr.openium.consentium.api.model.PurposeStatus
 import fr.openium.consentium.api.state.FetchConsentiumState
 import fr.openium.consentium.api.state.SetConsentiumState
 import fr.openium.consentium.domain.di.RepositoryEntryPoint
@@ -68,4 +70,12 @@ class Consentium(
             _saveConsentState.emit(SetConsentiumState.Error)
         }
     }
+}
+
+fun List<Purpose>.checkPurposeState(purposeId: String, onPurposeState: (PurposeStatus) -> Unit) {
+    onPurposeState(find { it.identifier == purposeId }?.choice ?: PurposeStatus.REJECTED)
+}
+
+fun List<Purpose>.checkPurposeState(purposeId: String): PurposeStatus {
+    return find { it.identifier == purposeId }?.choice ?: PurposeStatus.REJECTED
 }
\ No newline at end of file