diff --git a/core/src/main/java/com/example/core/Util.kt b/core/src/main/java/com/example/core/Util.kt
new file mode 100644
index 0000000..39df87d
--- /dev/null
+++ b/core/src/main/java/com/example/core/Util.kt
@@ -0,0 +1,24 @@
+package com.example.core
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.os.Build
+import android.provider.Settings
+
+fun getDeviceName(): String {
+    val manufacturer = Build.MANUFACTURER
+    val model = Build.MODEL
+
+    return if (model.startsWith(manufacturer, ignoreCase = true)) {
+        model
+    } else {
+        "$manufacturer $model"
+    }
+}
+
+@SuppressLint("HardwareIds")
+fun getAndroidId(context: Context): String {
+    return Settings
+        .Secure
+        .getString(context.contentResolver, Settings.Secure.ANDROID_ID)
+}
\ No newline at end of file
diff --git a/core/src/main/java/com/example/core/data/AppConfigImpl.kt b/core/src/main/java/com/example/core/data/AppConfigImpl.kt
deleted file mode 100644
index 1e97763..0000000
--- a/core/src/main/java/com/example/core/data/AppConfigImpl.kt
+++ /dev/null
@@ -1,9 +0,0 @@
-package com.example.core.data
-
-import com.example.core.domain.AppConfig
-
-class AppConfigImpl : AppConfig{
-    override fun androidId(id: String): String {
-        return "window.WebV.onUUID($id);"
-    }
-}
\ No newline at end of file
diff --git a/core/src/main/java/com/example/core/di/CoreModule.kt b/core/src/main/java/com/example/core/di/CoreModule.kt
index c7fc873..b4bd9f3 100644
--- a/core/src/main/java/com/example/core/di/CoreModule.kt
+++ b/core/src/main/java/com/example/core/di/CoreModule.kt
@@ -1,8 +1,6 @@
 package com.example.core.di
 
-import com.example.core.data.AppConfigImpl
 import com.example.core.data.PaymentResultImpl
-import com.example.core.domain.AppConfig
 import com.example.core.domain.PaymentResult
 import com.google.gson.Gson
 import dagger.Module
@@ -25,9 +23,4 @@ class CoreModule {
     ): PaymentResult = PaymentResultImpl(
         gson = gson
     )
-
-    @Provides
-    fun provideAppConfig(
-        gson: Gson
-    ): AppConfig = AppConfigImpl()
 }
\ No newline at end of file
diff --git a/core/src/main/java/com/example/core/domain/AppConfig.kt b/core/src/main/java/com/example/core/domain/AppConfig.kt
deleted file mode 100644
index 10df710..0000000
--- a/core/src/main/java/com/example/core/domain/AppConfig.kt
+++ /dev/null
@@ -1,7 +0,0 @@
-package com.example.core.domain
-
-import com.example.core.model.PaymentResultEntity
-
-interface AppConfig {
-    fun androidId(id : String) : String
-}
\ No newline at end of file
diff --git a/core/src/main/java/com/example/core/model/DeviceInfo.kt b/core/src/main/java/com/example/core/model/DeviceInfo.kt
new file mode 100644
index 0000000..2aad11a
--- /dev/null
+++ b/core/src/main/java/com/example/core/model/DeviceInfo.kt
@@ -0,0 +1,6 @@
+package com.example.core.model
+
+data class DeviceInfo(
+    val androidId: String,
+    val deviceName: String
+)
diff --git a/design_system/src/main/java/com/example/design_system/WebViewScreen.kt b/design_system/src/main/java/com/example/design_system/WebViewScreen.kt
index 51d41c2..8fb75cd 100644
--- a/design_system/src/main/java/com/example/design_system/WebViewScreen.kt
+++ b/design_system/src/main/java/com/example/design_system/WebViewScreen.kt
@@ -3,8 +3,6 @@ package com.example.design_system
 import android.annotation.SuppressLint
 import android.app.Activity
 import android.view.ViewGroup
-import android.webkit.WebResourceError
-import android.webkit.WebResourceRequest
 import android.webkit.WebSettings
 import android.webkit.WebView
 import android.webkit.WebViewClient
@@ -36,7 +34,7 @@ fun PspWebView(
     modifier: Modifier = Modifier,
     onWebView: (WebView) -> Unit,
     onPayClick: (amount: Long, id: String?) -> Unit,
-    onUUID: () -> Unit,
+    onDeviceInfo: () -> String,
     onPrintClick: (printEntities: List<PrintEntity>) -> Unit,
 ) {
 
@@ -49,13 +47,13 @@ fun PspWebView(
     // Use rememberUpdatedState to ensure the bridge always calls the latest callbacks
     val currentOnPayClick by rememberUpdatedState(onPayClick)
     val currentOnPrintClick by rememberUpdatedState(onPrintClick)
-    val currentOnUUID by rememberUpdatedState(onUUID)
+    val currentOnDeviceInfo by rememberUpdatedState(onDeviceInfo)
 
     val bridge = remember {
         PspJavaScriptInterface(
             onPayClick = { amount, id -> currentOnPayClick(amount, id) },
             onPrintClick = { entities -> currentOnPrintClick(entities) },
-            onUUID = { currentOnUUID() }
+            onDeviceInfo = { currentOnDeviceInfo() }
         )
     }
 
diff --git a/design_system/src/main/java/com/example/design_system/util/PspJavaScriptInterface.kt b/design_system/src/main/java/com/example/design_system/util/PspJavaScriptInterface.kt
index 00d37a4..92b263c 100644
--- a/design_system/src/main/java/com/example/design_system/util/PspJavaScriptInterface.kt
+++ b/design_system/src/main/java/com/example/design_system/util/PspJavaScriptInterface.kt
@@ -11,7 +11,7 @@ import com.google.gson.reflect.TypeToken
 class PspJavaScriptInterface(
     private val onPayClick: (Long, String?) -> Unit,
     private val onPrintClick: (List<PrintEntity>) -> Unit,
-    private val onUUID: () -> Unit,
+    private val onDeviceInfo: () -> String,
 ) {
 
     @JavascriptInterface
@@ -40,12 +40,13 @@ class PspJavaScriptInterface(
 
     @JavascriptInterface
     @Keep
-    fun uuid() {
+    fun deviceInfo(): String {
         Log.d("PspBridge", "uuid called")
-        try {
-            onUUID()
+        return try {
+            onDeviceInfo()
         } catch (e: Exception) {
             Log.e("PspBridge", "Error in uuid callback", e)
+            ""
         }
     }
 }
diff --git a/ps4/src/main/java/com/example/ps4/P3Printer.kt b/ps4/src/main/java/com/example/ps4/P4Printer.kt
similarity index 71%
rename from ps4/src/main/java/com/example/ps4/P3Printer.kt
rename to ps4/src/main/java/com/example/ps4/P4Printer.kt
index ac5e62c..8438e12 100644
--- a/ps4/src/main/java/com/example/ps4/P3Printer.kt
+++ b/ps4/src/main/java/com/example/ps4/P4Printer.kt
@@ -1,15 +1,12 @@
 package com.example.ps4
 
-import android.content.Context
 import androidx.annotation.DrawableRes
 import com.example.core.domain.Printer
 import com.example.core.model.PrintEntity
 import javax.inject.Inject
 
 
-class P4Printer @Inject constructor(
-    private val context: Context,
-) : Printer {
+class P4Printer @Inject constructor() : Printer {
 
 
     override fun print(
diff --git a/stage_app/build.gradle.kts b/stage_app/build.gradle.kts
index e349cde..dd91a36 100644
--- a/stage_app/build.gradle.kts
+++ b/stage_app/build.gradle.kts
@@ -2,10 +2,12 @@ plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.kotlin.compose)
     alias(libs.plugins.ksp)
-    alias(libs.plugins.hilt)}
+    alias(libs.plugins.hilt)
+}
 
 android {
     namespace = "com.example.stage_app"
+
     compileSdk {
         version = release(36) {
             minorApiLevel = 1
@@ -16,22 +18,33 @@ android {
         applicationId = "com.example.stage_app"
         minSdk = 24
         targetSdk = 36
-        versionCode = 1
-        versionName = "1.0"
-
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
 
     flavorDimensions.add("module")
     productFlavors {
         create("p3") {
+            versionCode = 1
+            versionName = "1.0"
             dimension = "module"
+            applicationId = "com.example.stage_app_p3"
+            manifestPlaceholders["appName"] = "TisP3"
+
         }
         create("ps4") {
+            versionCode = 1
+            versionName = "2.0"
             dimension = "module"
+            applicationId = "com.example.stage_app_p4"
+            manifestPlaceholders["appName"] = "TisP4"
         }
         create("standard") {
+            versionCode = 1
+            versionName = "1.0"
             dimension = "module"
+            applicationId = "com.example.stage_app"
+            manifestPlaceholders["appName"] = "Tis"
+
         }
     }
 
@@ -74,6 +87,7 @@ dependencies {
     implementation(libs.androidx.compose.ui.tooling.preview)
     implementation(libs.androidx.core.ktx)
     implementation(libs.androidx.lifecycle.runtime.ktx)
+    implementation(libs.retrofit.converter.gson)
     implementation("androidx.hilt:hilt-navigation-compose:1.2.0")
     testImplementation(libs.junit)
     androidTestImplementation(platform(libs.androidx.compose.bom))
diff --git a/stage_app/src/main/AndroidManifest.xml b/stage_app/src/main/AndroidManifest.xml
index 3128154..066dcfd 100644
--- a/stage_app/src/main/AndroidManifest.xml
+++ b/stage_app/src/main/AndroidManifest.xml
@@ -20,7 +20,7 @@
         android:name=".PspApplication"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
-        android:label="@string/app_name"
+        android:label="${appName}"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.PSP"
diff --git a/stage_app/src/main/java/com/example/stage_app/screen/StageWebViewScreen.kt b/stage_app/src/main/java/com/example/stage_app/screen/StageWebViewScreen.kt
index cd9602f..e2bb71f 100644
--- a/stage_app/src/main/java/com/example/stage_app/screen/StageWebViewScreen.kt
+++ b/stage_app/src/main/java/com/example/stage_app/screen/StageWebViewScreen.kt
@@ -1,6 +1,5 @@
 package com.example.stage_app.screen
 
-import android.provider.Settings
 import android.webkit.WebView
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
@@ -13,6 +12,8 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.hilt.navigation.compose.hiltViewModel
+import com.example.core.getAndroidId
+import com.example.core.getDeviceName
 import com.example.design_system.PspWebView
 import com.example.stage_app.viewmodel.StageViewModel
 
@@ -60,13 +61,10 @@ fun StageWebViewScreen(
             viewModel.print(printEntities)
 
         },
-        onUUID = {
-            val androidId = Settings
-                .Secure
-                .getString(context.contentResolver, Settings.Secure.ANDROID_ID)
-
-            viewModel.sendAndroidId(
-                androidId
+        onDeviceInfo = {
+            viewModel.deviceInfoJson(
+                androidId = getAndroidId(context),
+                getDeviceName()
             )
         }
     )
diff --git a/stage_app/src/main/java/com/example/stage_app/viewmodel/StageViewModel.kt b/stage_app/src/main/java/com/example/stage_app/viewmodel/StageViewModel.kt
index 45d5a4d..05e380c 100644
--- a/stage_app/src/main/java/com/example/stage_app/viewmodel/StageViewModel.kt
+++ b/stage_app/src/main/java/com/example/stage_app/viewmodel/StageViewModel.kt
@@ -3,12 +3,13 @@ package com.example.stage_app.viewmodel
 import android.content.Intent
 import androidx.activity.result.ActivityResult
 import androidx.lifecycle.ViewModel
-import com.example.core.domain.AppConfig
 import com.example.core.domain.PaymentResult
 import com.example.core.domain.Printer
 import com.example.core.domain.PspService
+import com.example.core.model.DeviceInfo
 import com.example.core.model.PaymentResultEntity
 import com.example.core.model.PrintEntity
+import com.google.gson.Gson
 import dagger.hilt.android.lifecycle.HiltViewModel
 import javax.inject.Inject
 
@@ -17,7 +18,7 @@ class StageViewModel @Inject constructor(
     private val pspService: PspService,
     private val paymentResult: PaymentResult,
     private val printer: Printer,
-    private val appConfig: AppConfig
+    private val gson: Gson
 ) : ViewModel() {
 
 
@@ -66,7 +67,12 @@ class StageViewModel @Inject constructor(
         )
     }
 
-    fun sendAndroidId(id: String) {
-        appConfig.androidId(id)
+    fun deviceInfoJson(androidId: String, deviceName: String): String {
+        return gson.toJson(
+            DeviceInfo(
+                androidId = androidId,
+                deviceName = deviceName
+            )
+        )
     }
 }
diff --git a/stage_app/src/ps4/java/com/example/tis_sep/di/PspModule.kt b/stage_app/src/ps4/java/com/example/tis_sep/di/PspModule.kt
index eece775..66de413 100644
--- a/stage_app/src/ps4/java/com/example/tis_sep/di/PspModule.kt
+++ b/stage_app/src/ps4/java/com/example/tis_sep/di/PspModule.kt
@@ -1,8 +1,9 @@
 package com.example.tis_sep.di
 
-import com.example.core.PspService
-import com.example.ps4.Ps4Service
+import com.example.core.domain.Printer
+import com.example.core.domain.PspService
 import com.example.ps4.P4Printer
+import com.example.ps4.Ps4Service
 import dagger.Binds
 import dagger.Module
 import dagger.hilt.InstallIn
diff --git a/tis_app/build.gradle.kts b/tis_app/build.gradle.kts
index 03c343a..1036c70 100644
--- a/tis_app/build.gradle.kts
+++ b/tis_app/build.gradle.kts
@@ -17,23 +17,30 @@ android {
         applicationId = "com.example.tis_app"
         minSdk = 24
         targetSdk = 36
-        versionCode = 1
-        versionName = "1.0"
-
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
 
     flavorDimensions.add("module")
     productFlavors {
         create("p3") {
+            versionCode = 1
+            versionName = "1.0"
             dimension = "module"
+            applicationId = "com.example.tis_app_p3"
+            manifestPlaceholders["appName"] = "تیس"
         }
         create("ps4") {
+            versionCode = 1
+            versionName = "1.0"
             dimension = "module"
-        }
+            applicationId = "com.example.tis_app_p4"
+            manifestPlaceholders["appName"] = "تیس"        }
         create("standard") {
+            versionCode = 1
+            versionName = "1.0"
             dimension = "module"
-        }
+            applicationId = "com.example.tis_app"
+            manifestPlaceholders["appName"] = "تیس"        }
     }
 
     buildTypes {
@@ -72,6 +79,7 @@ dependencies {
     implementation(libs.androidx.compose.ui.graphics)
     implementation(libs.androidx.compose.ui.tooling.preview)
     implementation(libs.androidx.core.ktx)
+    implementation(libs.retrofit.converter.gson)
     implementation(libs.androidx.lifecycle.runtime.ktx)
     implementation("androidx.hilt:hilt-navigation-compose:1.2.0")
     testImplementation(libs.junit)
diff --git a/tis_app/src/main/java/com/example/tis_app/screen/TisWebViewScreen.kt b/tis_app/src/main/java/com/example/tis_app/screen/TisWebViewScreen.kt
index f7cff35..e64eef0 100644
--- a/tis_app/src/main/java/com/example/tis_app/screen/TisWebViewScreen.kt
+++ b/tis_app/src/main/java/com/example/tis_app/screen/TisWebViewScreen.kt
@@ -1,6 +1,5 @@
 package com.example.tis_app.screen
 
-import android.provider.Settings
 import android.webkit.WebView
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
@@ -13,9 +12,13 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.hilt.navigation.compose.hiltViewModel
+import com.example.core.getAndroidId
+import com.example.core.getDeviceName
 import com.example.design_system.PspWebView
 import com.example.tis_app.viewmodel.WebViewModel
+
 private const val tisIp = "194.59.214.243:8090"
+
 @Composable
 fun TisWebViewScreen(
     modifier: Modifier = Modifier,
@@ -58,13 +61,10 @@ fun TisWebViewScreen(
             viewModel.print(printEntities)
 
         },
-        onUUID = {
-            val androidId = Settings
-                .Secure
-                .getString(context.contentResolver, Settings.Secure.ANDROID_ID)
-
-            viewModel.sendAndroidId(
-                androidId
+        onDeviceInfo = {
+            viewModel.deviceInfoJson(
+                androidId = getAndroidId(context),
+                getDeviceName()
             )
         }
     )
diff --git a/tis_app/src/main/java/com/example/tis_app/viewmodel/WebViewModel.kt b/tis_app/src/main/java/com/example/tis_app/viewmodel/WebViewModel.kt
index 4cb37df..4cd3a3a 100644
--- a/tis_app/src/main/java/com/example/tis_app/viewmodel/WebViewModel.kt
+++ b/tis_app/src/main/java/com/example/tis_app/viewmodel/WebViewModel.kt
@@ -3,13 +3,14 @@ package com.example.tis_app.viewmodel
 import android.content.Intent
 import androidx.activity.result.ActivityResult
 import androidx.lifecycle.ViewModel
-import com.example.core.domain.AppConfig
 import com.example.core.domain.PaymentResult
 import com.example.core.domain.Printer
 import com.example.core.domain.PspService
+import com.example.core.model.DeviceInfo
 import com.example.core.model.PaymentResultEntity
 import com.example.core.model.PrintEntity
 import com.example.tis_app.R
+import com.google.gson.Gson
 import dagger.hilt.android.lifecycle.HiltViewModel
 import javax.inject.Inject
 
@@ -18,7 +19,7 @@ class WebViewModel @Inject constructor(
     private val pspService: PspService,
     private val paymentResult: PaymentResult,
     private val printer: Printer,
-    private val appConfig: AppConfig
+    private val gson: Gson
 ) : ViewModel() {
 
 
@@ -37,14 +38,20 @@ class WebViewModel @Inject constructor(
             activityResult = activityResult
         )
     }
-    fun print(printEntities : List<PrintEntity>) {
+
+    fun print(printEntities: List<PrintEntity>) {
         printer.print(
             printEntities = printEntities,
             icon = R.drawable.tis_icon
         )
     }
 
-    fun sendAndroidId(id : String) {
-        appConfig.androidId(id)
+    fun deviceInfoJson(androidId: String, deviceName: String): String {
+        return gson.toJson(
+            DeviceInfo(
+                androidId = androidId,
+                deviceName = deviceName
+            )
+        )
     }
 }