diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 5833d11..a623bfb 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -53,6 +53,8 @@ dependencies {
     implementation("com.squareup.okhttp3:okhttp:4.7.2")
 
 
+    implementation("io.insert-koin:koin-compose:4.1.0-Beta5")
+    implementation("io.insert-koin:koin-compose-viewmodel:4.1.0-Beta5")
 
     implementation(libs.androidx.core.ktx)
     implementation(libs.androidx.lifecycle.runtime.ktx)
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index f2b85a1..d84f436 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -3,6 +3,7 @@
     xmlns:tools="http://schemas.android.com/tools">
 <uses-permission android:name="android.permission.INTERNET"/>
     <application
+        android:name=".MainApplication"
         android:usesCleartextTraffic="true"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
diff --git a/app/src/main/java/com/example/netwrok_datastore/MainActivity.kt b/app/src/main/java/com/example/netwrok_datastore/MainActivity.kt
index cc738fa..2d3a4bb 100644
--- a/app/src/main/java/com/example/netwrok_datastore/MainActivity.kt
+++ b/app/src/main/java/com/example/netwrok_datastore/MainActivity.kt
@@ -21,8 +21,10 @@ import com.example.netwrok_datastore.domain.usecase.AuthUseCase
 import com.example.netwrok_datastore.ui.screen.ProfileScreen
 import com.example.netwrok_datastore.ui.screen.SplashScreen
 import com.example.netwrok_datastore.ui.screen.registration.RegistrationScreen
+import com.example.netwrok_datastore.ui.screen.registration.RegistrationViewModel
 import com.example.netwrok_datastore.ui.theme.NetwrokDatastoreTheme
 import kotlinx.serialization.Serializable
+import org.koin.androidx.viewmodel.ext.android.viewModel
 
 class MainActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -33,6 +35,7 @@ class MainActivity : ComponentActivity() {
         val localStorage = LocalStorage(applicationContext)
         val authUseCase = AuthUseCase(localStorage, authRepository)
 
+        val registrationViewModel: RegistrationViewModel by viewModel()
         setContent {
             val navController = rememberNavController()
             NetwrokDatastoreTheme {
@@ -48,7 +51,7 @@ class MainActivity : ComponentActivity() {
                         }
                     }
                     composable<Registration> {
-                        RegistrationScreen(authUseCase){
+                        RegistrationScreen(registrationViewModel){
                             navController.navigate(route = Profile)
                         }
                     }
diff --git a/app/src/main/java/com/example/netwrok_datastore/MainApplication.kt b/app/src/main/java/com/example/netwrok_datastore/MainApplication.kt
new file mode 100644
index 0000000..314b785
--- /dev/null
+++ b/app/src/main/java/com/example/netwrok_datastore/MainApplication.kt
@@ -0,0 +1,16 @@
+package com.example.netwrok_datastore
+
+import android.app.Application
+import com.example.netwrok_datastore.di.appModules
+import org.koin.android.ext.koin.androidContext
+import org.koin.core.context.startKoin
+
+class MainApplication: Application() {
+    override fun onCreate() {
+        super.onCreate()
+        startKoin {
+            androidContext(applicationContext)
+            modules(appModules)
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/netwrok_datastore/di/appModules.kt b/app/src/main/java/com/example/netwrok_datastore/di/appModules.kt
new file mode 100644
index 0000000..5bd93ac
--- /dev/null
+++ b/app/src/main/java/com/example/netwrok_datastore/di/appModules.kt
@@ -0,0 +1,18 @@
+package com.example.netwrok_datastore.di
+
+import com.example.netwrok_datastore.data.AuthRepository
+import com.example.netwrok_datastore.data.local.LocalStorage
+import com.example.netwrok_datastore.data.remote.RetrofitSettings
+import com.example.netwrok_datastore.data.remote.auth.AuthApi
+import com.example.netwrok_datastore.domain.usecase.AuthUseCase
+import com.example.netwrok_datastore.ui.screen.registration.RegistrationViewModel
+import org.koin.core.module.dsl.viewModel
+import org.koin.dsl.module
+
+val appModules = module {
+    single { LocalStorage(get()) }
+    single<AuthApi> { RetrofitSettings.authApi }
+    single<AuthRepository> { AuthRepository(get()) }
+    single { AuthUseCase(get(), get()) }
+    viewModel { RegistrationViewModel(get()) }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/netwrok_datastore/ui/screen/registration/RegistrationScreen.kt b/app/src/main/java/com/example/netwrok_datastore/ui/screen/registration/RegistrationScreen.kt
index f3012a2..2e7a942 100644
--- a/app/src/main/java/com/example/netwrok_datastore/ui/screen/registration/RegistrationScreen.kt
+++ b/app/src/main/java/com/example/netwrok_datastore/ui/screen/registration/RegistrationScreen.kt
@@ -31,8 +31,7 @@ import kotlinx.coroutines.delay
 import kotlinx.coroutines.runBlocking
 
 @Composable
-fun RegistrationScreen(authUseCase: AuthUseCase, onNavigationToProfile: ()-> Unit){
-    val viewModel = RegistrationViewModel(authUseCase)
+fun RegistrationScreen(viewModel: RegistrationViewModel, onNavigationToProfile: ()-> Unit){
     val snackBarHostState = remember { SnackbarHostState() }
 
     Scaffold(