diff --git a/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/SettingsScreen.kt b/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/SettingsScreen.kt
index af9d953d..d7668881 100644
--- a/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/SettingsScreen.kt
+++ b/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/SettingsScreen.kt
@@ -72,7 +72,7 @@ fun SettingsScreen(vm: ChatViewModel, onBack: () -> Unit, onExit: () -> Unit = {
     var dirty by rememberSaveable { mutableStateOf(false) }
 
     var tabIndex by rememberSaveable { mutableStateOf(0) }
-    val tabs = listOf(R.string.settings, R.string.audio, R.string.storage, R.string.radio)
+    val tabs = listOf(R.string.settings, R.string.audio, R.string.storage, R.string.radio, R.string.dev)
 
     val handleBack = {
         if (dirty && NativeLib.isReady()) {
@@ -101,25 +101,52 @@ fun SettingsScreen(vm: ChatViewModel, onBack: () -> Unit, onExit: () -> Unit = {
                 }
             }
             when (tabIndex) {
-                0 -> GeneralSettingsTab(vm, dirty, onDirty = { dirty = it }, onExit)
+                0 -> GeneralSettingsTab(onDirty = { dirty = it })
                 1 -> AudioSettingsTab(vm)
                 2 -> StorageSettingsTab()
                 3 -> RadioSettingsTab()
+                4 -> DeveloperSettingsTab(vm, onDirty = { dirty = it }, onExit)
             }
         }
     }
 }
 
-/* ── General Settings Tab ── */
+/* Основные настройки профиля и приложения. */
+
+@Composable
+private fun GeneralSettingsTab(onDirty: (Boolean) -> Unit) {
+    val provider = ChatApplication.instance.configProvider
+    val scope = rememberCoroutineScope()
+    var nodeName by remember { mutableStateOf("") }
+
+    LaunchedEffect(Unit) {
+        nodeName = provider.getString("node.name") ?: provider.getDeviceName()
+        LogManager.addLog("INFO", "SETTINGS", "General settings opened")
+    }
+
+    LazyColumn(
+        modifier = Modifier.fillMaxSize(),
+        contentPadding = PaddingValues(16.dp),
+        verticalArrangement = Arrangement.spacedBy(12.dp)
+    ) {
+        item(key = "language") { LanguageSetting() }
+        item(key = "battery") { BatteryOptimizationSetting(source = "settings") }
+        item(key = "node-name") {
+            OutlinedTextField(nodeName, { v -> onDirty(true); nodeName = v; scope.launch { provider.setValue("node.name", v) } },
+                label = { Text(stringResource(R.string.node_name)) }, singleLine = true, modifier = Modifier.heightIn(min = 40.dp))
+        }
+        item(key = "profile-avatar") { ProfileAvatarControls() }
+    }
+}
+
+/* Настройки разработчика: сеть, ключи, standby, диагностика и управление сервисом. */
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
-private fun GeneralSettingsTab(vm: ChatViewModel, dirty: Boolean, onDirty: (Boolean) -> Unit,
-                                onExit: () -> Unit) {
+private fun DeveloperSettingsTab(vm: ChatViewModel, onDirty: (Boolean) -> Unit, onExit: () -> Unit) {
     val provider = ChatApplication.instance.configProvider
     val scope = rememberCoroutineScope()
 
-    var nodeName by remember { mutableStateOf("") }
     var listenPort by remember { mutableStateOf("12345") }
     var controlPort by remember { mutableStateOf("9999") }
     var controlBindIp by remember { mutableStateOf("127.0.0.1") }
@@ -152,7 +179,6 @@ private fun GeneralSettingsTab(vm: ChatViewModel, dirty: Boolean, onDirty: (Bool
     var startOnBootError by remember { mutableStateOf(false) }
 
     LaunchedEffect(Unit) {
-        nodeName = provider.getString("node.name") ?: provider.getDeviceName()
         listenPort = provider.getInt("node.listen_port").toString()
         controlPort = provider.getInt("control.port").toString()
         controlBindIp = provider.getString("control.bind_ip") ?: "127.0.0.1"
@@ -206,7 +232,7 @@ private fun GeneralSettingsTab(vm: ChatViewModel, dirty: Boolean, onDirty: (Bool
     val openedAt = remember { android.os.SystemClock.uptimeMillis() }
     LaunchedEffect(Unit) {
         withFrameNanos { }
-        LogManager.addLog("INFO", "SETTINGS", "General settings displayed: elapsedMs=${android.os.SystemClock.uptimeMillis() - openedAt} " +
+        LogManager.addLog("INFO", "SETTINGS", "Dev settings displayed: elapsedMs=${android.os.SystemClock.uptimeMillis() - openedAt} " +
             "visibleItems=${listState.layoutInfo.visibleItemsInfo.size} totalItems=${listState.layoutInfo.totalItemsCount}")
     }
 
@@ -217,15 +243,8 @@ private fun GeneralSettingsTab(vm: ChatViewModel, dirty: Boolean, onDirty: (Bool
         contentPadding = PaddingValues(16.dp),
         verticalArrangement = Arrangement.spacedBy(12.dp)
     ) {
-        item(key = "language") { LanguageSetting() }
-        item(key = "battery") { BatteryOptimizationSetting(source = "settings") }
-
         /* Node */
         item(key = "node-title") { Text(stringResource(R.string.node), style = MaterialTheme.typography.titleMedium) }
-        item(key = "node-name") {
-            OutlinedTextField(nodeName, { v -> onDirty(true); nodeName = v; scope.launch { provider.setValue("node.name", v) } },
-                label = { Text(stringResource(R.string.node_name)) }, singleLine = true, modifier = Modifier.heightIn(min = 40.dp))
-        }
         item(key = "listen-port") {
             OutlinedTextField(listenPort, { v -> onDirty(true); listenPort = v; scope.launch { provider.setValue("node.listen_port", v) } },
                 label = { Text(stringResource(R.string.listen_port)) }, keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
@@ -256,8 +275,6 @@ private fun GeneralSettingsTab(vm: ChatViewModel, dirty: Boolean, onDirty: (Bool
             }
         }
 
-        item(key = "profile-avatar") { ProfileAvatarControls() }
-
         /* Keys */
         item(key = "keys-title") { Text(stringResource(R.string.keys), style = MaterialTheme.typography.titleMedium) }
         item(key = "public-key") { OutlinedTextField(pubKey, {}, label = { Text(stringResource(R.string.public_key)) }, readOnly = true, singleLine = true) }
diff --git a/tools/chatgui-android/app/src/main/res/values/strings.xml b/tools/chatgui-android/app/src/main/res/values/strings.xml
index bb3552d7..81d6f4be 100644
--- a/tools/chatgui-android/app/src/main/res/values/strings.xml
+++ b/tools/chatgui-android/app/src/main/res/values/strings.xml
@@ -4,6 +4,7 @@
     <string name="microphone_request_failed">"Could not request microphone access"</string>
     <string name="microphone_permission_settings">"Microphone access is denied. Allow it in app settings, then try the call or PTT again."</string>
     <string name="settings">"Settings"</string>
+    <string name="dev" translatable="false">Dev</string>
     <string name="cancel">"Cancel"</string>
     <string name="invalid_channel_id">"Invalid channel ID"</string>
     <string name="microphone_ptt_retry">"Microphone allowed. Press PTT again"</string>