diff --git a/CHANGELOG.md b/CHANGELOG.md
index b05930e..f6b4f92 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,17 +1,24 @@
+## 0.6.1
+
+- Added methods getUserId, updateUserId, getDeviceId, updateDeviceId for user analytics.
+- Experiments for ios has been fixed.
+- The Swift based version of Varioqub has been upgraded to 0.6.0 version.
+- Updated docs.
+
 ## 0.6.0
 
-Pigeon have been updated to version ^17.0.0.
-Kotlin and swift packages have been updated to version 0.6.0.
-Updated docs.
+- Pigeon have been updated to version ^17.0.0.
+- Kotlin and swift packages have been updated to version 0.6.0.
+- Updated docs.
 
 ## 0.0.3
 
-Changing dependencies in .podspec for ios projects, the library is now static
+- Changing dependencies in .podspec for ios projects, the library is now static
 
 ## 0.0.2
 
-Moving the lower sdk limits to >=3.2.0
+- Moving the lower sdk limits to >=3.2.0
 
 ## 0.0.1
 
-Initial release.
+- Initial release.
diff --git a/README.md b/README.md
index ea853b6..34c3290 100644
--- a/README.md
+++ b/README.md
@@ -32,10 +32,6 @@ await configs.getString(
 
 [Official docs from Yandex](https://yandex.ru/support2/varioqub-app/ru/)
 
-# Limitations
-
-At the moment, the library is used exclusively for obtaining and working with configs and experiments. Analytics elements are not used for fetch!
-
 # Changelog
 
 [Refer to the Changelog to get all release notes.](https://github.com/meg4cyberc4t/varioqub_configs/blob/main/CHANGELOG.md)
diff --git a/android/src/main/kotlin/com/meg4cyberc4t/varioqub_configs/Messages.g.kt b/android/src/main/kotlin/com/meg4cyberc4t/varioqub_configs/Messages.g.kt
index 6ebb1f1..7524581 100644
--- a/android/src/main/kotlin/com/meg4cyberc4t/varioqub_configs/Messages.g.kt
+++ b/android/src/main/kotlin/com/meg4cyberc4t/varioqub_configs/Messages.g.kt
@@ -4,6 +4,7 @@
 // Autogenerated from Pigeon (v17.0.0), do not edit directly.
 // See also: https://pub.dev/packages/pigeon
 
+package com.meg4cyberc4t.varioqub_configs
 
 import android.util.Log
 import io.flutter.plugin.common.BasicMessageChannel
@@ -99,6 +100,10 @@ private object VarioqubSenderCodec : StandardMessageCodec() {
 /** Generated interface from Pigeon that represents a handler of messages from Flutter. */
 interface VarioqubSender {
   fun build(settings: PigeonBuildSettings)
+  fun getDeviceId(): String
+  fun updateDeviceId(value: String)
+  fun getUserId(): String
+  fun updateUserId(value: String)
   fun fetchConfig(callback: (Result<Unit>) -> Unit)
   fun activateConfig(callback: (Result<Unit>) -> Unit)
   fun setDefaults(values: Map<String, Any>)
@@ -138,6 +143,76 @@ interface VarioqubSender {
           channel.setMessageHandler(null)
         }
       }
+      run {
+        val channel = BasicMessageChannel<Any?>(binaryMessenger, "dev.flutter.pigeon.varioqub_configs.VarioqubSender.getDeviceId", codec)
+        if (api != null) {
+          channel.setMessageHandler { _, reply ->
+            var wrapped: List<Any?>
+            try {
+              wrapped = listOf<Any?>(api.getDeviceId())
+            } catch (exception: Throwable) {
+              wrapped = wrapError(exception)
+            }
+            reply.reply(wrapped)
+          }
+        } else {
+          channel.setMessageHandler(null)
+        }
+      }
+      run {
+        val channel = BasicMessageChannel<Any?>(binaryMessenger, "dev.flutter.pigeon.varioqub_configs.VarioqubSender.updateDeviceId", codec)
+        if (api != null) {
+          channel.setMessageHandler { message, reply ->
+            val args = message as List<Any?>
+            val valueArg = args[0] as String
+            var wrapped: List<Any?>
+            try {
+              api.updateDeviceId(valueArg)
+              wrapped = listOf<Any?>(null)
+            } catch (exception: Throwable) {
+              wrapped = wrapError(exception)
+            }
+            reply.reply(wrapped)
+          }
+        } else {
+          channel.setMessageHandler(null)
+        }
+      }
+      run {
+        val channel = BasicMessageChannel<Any?>(binaryMessenger, "dev.flutter.pigeon.varioqub_configs.VarioqubSender.getUserId", codec)
+        if (api != null) {
+          channel.setMessageHandler { _, reply ->
+            var wrapped: List<Any?>
+            try {
+              wrapped = listOf<Any?>(api.getUserId())
+            } catch (exception: Throwable) {
+              wrapped = wrapError(exception)
+            }
+            reply.reply(wrapped)
+          }
+        } else {
+          channel.setMessageHandler(null)
+        }
+      }
+      run {
+        val channel = BasicMessageChannel<Any?>(binaryMessenger, "dev.flutter.pigeon.varioqub_configs.VarioqubSender.updateUserId", codec)
+        if (api != null) {
+          channel.setMessageHandler { message, reply ->
+            val args = message as List<Any?>
+            val valueArg = args[0] as String
+            var wrapped: List<Any?>
+            try {
+              api.updateUserId(valueArg)
+              wrapped = listOf<Any?>(null)
+            } catch (exception: Throwable) {
+              wrapped = wrapError(exception)
+            }
+            reply.reply(wrapped)
+          }
+        } else {
+          channel.setMessageHandler(null)
+        }
+      }
       run {
         val channel = BasicMessageChannel<Any?>(binaryMessenger, "dev.flutter.pigeon.varioqub_configs.VarioqubSender.fetchConfig", codec)
         if (api != null) {
diff --git a/android/src/main/kotlin/com/meg4cyberc4t/varioqub_configs/VarioqubConfigsPlugin.kt b/android/src/main/kotlin/com/meg4cyberc4t/varioqub_configs/VarioqubConfigsPlugin.kt
index 0f9a304..6f0f707 100644
--- a/android/src/main/kotlin/com/meg4cyberc4t/varioqub_configs/VarioqubConfigsPlugin.kt
+++ b/android/src/main/kotlin/com/meg4cyberc4t/varioqub_configs/VarioqubConfigsPlugin.kt
@@ -1,7 +1,5 @@
 package com.meg4cyberc4t.varioqub_configs
 
-import PigeonBuildSettings
-import VarioqubSender
 import android.content.Context
 import android.util.Log
 import com.yandex.varioqub.config.FetchError
@@ -21,6 +19,7 @@ class VarioqubConfigsPlugin : FlutterPlugin, VarioqubSender {
 
     private lateinit var api: VarioqubApi
     private lateinit var context: Context
+    private val adapter: VarioqubAdapter = VarioqubAdapter()
 
     override fun onAttachedToEngine(flutterPluginBinding: FlutterPlugin.FlutterPluginBinding) {
         try {
@@ -28,7 +27,7 @@ class VarioqubConfigsPlugin : FlutterPlugin, VarioqubSender {
             context = flutterPluginBinding.applicationContext
             api = Varioqub.getInstance()
         } catch (error: Throwable) {
-            Log.e(TAG, "Failed to initialize TickerPlugin")
+            Log.e(TAG, "Failed to initialize VarioqubConfigsPlugin")
         }
     }
 
@@ -52,11 +51,25 @@ class VarioqubConfigsPlugin : FlutterPlugin, VarioqubSender {
         }
         api.init(
             settingsBuilder.build(),
-            VarioqubAdapter(),
+            adapter,
             context,
         );
     }
 
+    override fun updateDeviceId(value: String) {
+        adapter.deviceId = value;
+    }
+
+    override fun getDeviceId(): String {
+      return adapter.deviceId;
+    }
+    override fun updateUserId(value: String) {
+        adapter.userId = value;
+    }
+    override fun getUserId(): String {
+       return adapter.userId;
+    }
+
     override fun fetchConfig(callback: (Result<Unit>) -> Unit) {
         api.fetchConfig(
             object : OnFetchCompleteListener {
diff --git a/android/src/main/kotlin/com/meg4cyberc4t/varioqub_configs/VarioqubReceiverAdapter.kt b/android/src/main/kotlin/com/meg4cyberc4t/varioqub_configs/VarioqubReceiverAdapter.kt
index 1890b02..fe013ec 100644
--- a/android/src/main/kotlin/com/meg4cyberc4t/varioqub_configs/VarioqubReceiverAdapter.kt
+++ b/android/src/main/kotlin/com/meg4cyberc4t/varioqub_configs/VarioqubReceiverAdapter.kt
@@ -6,14 +6,17 @@ import com.yandex.varioqub.analyticadapter.VarioqubConfigAdapter
 class VarioqubAdapter : VarioqubConfigAdapter {
     override val adapterName: String = "VarioqubAdapter"
 
+    var deviceId: String = "000"
+    var userId: String = "000"
+
     override fun reportConfigChanged(configData: com.yandex.varioqub.analyticadapter.data.ConfigData) {}
 
     override fun requestDeviceId(callback: AdapterIdentifiersCallback) {
-        callback.onSuccess("000")
+        callback.onSuccess(deviceId)
     }
 
     override fun requestUserId(callback: AdapterIdentifiersCallback) {
-        callback.onSuccess("000")
+        callback.onSuccess(userId)
     }
 
     override fun setExperiments(experiments: String) {}
diff --git a/example/android/settings.gradle b/example/android/settings.gradle
index 7cd7128..af1ec35 100644
--- a/example/android/settings.gradle
+++ b/example/android/settings.gradle
@@ -23,7 +23,7 @@ pluginManagement {
 
 plugins {
     id "dev.flutter.flutter-plugin-loader" version "1.0.0"
-    id "com.android.application" version "7.3.0" apply false
+    id "com.android.application" version '7.4.2' apply false
 }
 
 include ":app"
diff --git a/example/ios/Podfile.lock b/example/ios/Podfile.lock
index a4522b5..be0b08d 100644
--- a/example/ios/Podfile.lock
+++ b/example/ios/Podfile.lock
@@ -1,16 +1,13 @@
 PODS:
   - Flutter (1.0.0)
+  - Varioqub (0.6.0):
+    - Varioqub/Core (= 0.6.0)
   - Varioqub/Core (0.6.0):
     - Varioqub/VQSwiftProtobuf
-  - Varioqub/MetricaAdapter (0.6.0):
-    - Varioqub/Core
-    - Varioqub/VQSwiftProtobuf
-    - YandexMobileMetrica/Dynamic/Core (~> 4.5.0)
   - Varioqub/VQSwiftProtobuf (0.6.0)
-  - varioqub_configs (0.0.1):
+  - varioqub_configs (0.6.1):
     - Flutter
-    - Varioqub/MetricaAdapter (~> 0.5)
-  - YandexMobileMetrica/Dynamic/Core (4.5.2)
+    - Varioqub (~> 0.6)
 
 DEPENDENCIES:
   - Flutter (from `Flutter`)
@@ -19,7 +16,6 @@ DEPENDENCIES:
 SPEC REPOS:
   trunk:
     - Varioqub
-    - YandexMobileMetrica
 
 EXTERNAL SOURCES:
   Flutter:
@@ -30,9 +26,8 @@ EXTERNAL SOURCES:
 SPEC CHECKSUMS:
   Flutter: e0871f40cf51350855a761d2e70bf5af5b9b5de7
   Varioqub: 58ac5ff3e51a46aca97c3a9c9f3b5cc9d5bf949e
-  varioqub_configs: d8f4e7737df8a0e3149ca85105c09dee791b8d62
-  YandexMobileMetrica: f5368ee93f286c793d73b58da00929babfc897c1
+  varioqub_configs: 3bc95e7b23152922bf18d365c009bff6cff00c7b
 
 PODFILE CHECKSUM: 819463e6a0290f5a72f145ba7cde16e8b6ef0796
 
-COCOAPODS: 1.13.0
+COCOAPODS: 1.15.0
diff --git a/ios/Classes/Messages.g.swift b/ios/Classes/Messages.g.swift
index 03d8b12..96784c0 100644
--- a/ios/Classes/Messages.g.swift
+++ b/ios/Classes/Messages.g.swift
@@ -111,6 +111,10 @@ class VarioqubSenderCodec: FlutterStandardMessageCodec {
 /// Generated protocol from Pigeon that represents a handler of messages from Flutter.
 protocol VarioqubSender {
   func build(settings: PigeonBuildSettings) throws
+  func getDeviceId() throws -> String
+  func updateDeviceId(value: String) throws
+  func getUserId() throws -> String
+  func updateUserId(value: String) throws
   func fetchConfig(completion: @escaping (Result<Void, Error>) -> Void)
   func activateConfig(completion: @escaping (Result<Void, Error>) -> Void)
   func setDefaults(values: [String: Any]) throws
@@ -145,6 +149,62 @@ class VarioqubSenderSetup {
     } else {
       buildChannel.setMessageHandler(nil)
     }
+    let getDeviceIdChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.varioqub_configs.VarioqubSender.getDeviceId", binaryMessenger: binaryMessenger, codec: codec)
+    if let api = api {
+      getDeviceIdChannel.setMessageHandler { _, reply in
+        do {
+          let result = try api.getDeviceId()
+          reply(wrapResult(result))
+        } catch {
+          reply(wrapError(error))
+        }
+      }
+    } else {
+      getDeviceIdChannel.setMessageHandler(nil)
+    }
+    let updateDeviceIdChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.varioqub_configs.VarioqubSender.updateDeviceId", binaryMessenger: binaryMessenger, codec: codec)
+    if let api = api {
+      updateDeviceIdChannel.setMessageHandler { message, reply in
+        let args = message as! [Any?]
+        let valueArg = args[0] as! String
+        do {
+          try api.updateDeviceId(value: valueArg)
+          reply(wrapResult(nil))
+        } catch {
+          reply(wrapError(error))
+        }
+      }
+    } else {
+      updateDeviceIdChannel.setMessageHandler(nil)
+    }
+    let getUserIdChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.varioqub_configs.VarioqubSender.getUserId", binaryMessenger: binaryMessenger, codec: codec)
+    if let api = api {
+      getUserIdChannel.setMessageHandler { _, reply in
+        do {
+          let result = try api.getUserId()
+          reply(wrapResult(result))
+        } catch {
+          reply(wrapError(error))
+        }
+      }
+    } else {
+      getUserIdChannel.setMessageHandler(nil)
+    }
+    let updateUserIdChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.varioqub_configs.VarioqubSender.updateUserId", binaryMessenger: binaryMessenger, codec: codec)
+    if let api = api {
+      updateUserIdChannel.setMessageHandler { message, reply in
+        let args = message as! [Any?]
+        let valueArg = args[0] as! String
+        do {
+          try api.updateUserId(value: valueArg)
+          reply(wrapResult(nil))
+        } catch {
+          reply(wrapError(error))
+        }
+      }
+    } else {
+      updateUserIdChannel.setMessageHandler(nil)
+    }
     let fetchConfigChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.varioqub_configs.VarioqubSender.fetchConfig", binaryMessenger: binaryMessenger, codec: codec)
     if let api = api {
       fetchConfigChannel.setMessageHandler { _, reply in
diff --git a/ios/Classes/VarioqubConfigsPlugin.swift b/ios/Classes/VarioqubConfigsPlugin.swift
index b05cf84..ca8e4aa 100644
--- a/ios/Classes/VarioqubConfigsPlugin.swift
+++ b/ios/Classes/VarioqubConfigsPlugin.swift
@@ -9,7 +9,20 @@ import Varioqub
 #endif
 
 
+public class VarioqubIdHandler: NSObject, VarioqubIdProvider {
+    public var deviceId: String = "000"
+    public var userId: String = "000"
+    
+    public func fetchIdentifiers(completion: @escaping Completion) {
+        completion(Result.success(VarioqubIdentifiers(deviceId: deviceId, userId: userId)))
+    }
+    
+    public var varioqubName: String = "VarioqubIdHandler"
+}
+
 public class VarioqubConfigsPlugin: NSObject, FlutterPlugin, VarioqubSender {
+    let idHandler: VarioqubIdHandler = VarioqubIdHandler();
+    
     init(binaryMessenger: FlutterBinaryMessenger) {
             super.init()
         VarioqubSenderSetup.setUp(binaryMessenger: binaryMessenger, api: self)
@@ -35,7 +48,7 @@ public class VarioqubConfigsPlugin: NSObject, FlutterPlugin, VarioqubSender {
         VarioqubFacade.shared.initialize(
             clientId: settings.clientId,
             config: config,
-            idProvider: nil,
+            idProvider: idHandler,
             reporter: nil
         )
     }
@@ -64,6 +77,22 @@ public class VarioqubConfigsPlugin: NSObject, FlutterPlugin, VarioqubSender {
         return VarioqubFacade.shared.setDefaultsAndWait(defaults)
     }
     
+    func getDeviceId() throws -> String {
+        return idHandler.deviceId
+    }
+    
+    func updateDeviceId(value: String) throws {
+        return idHandler.deviceId = value
+    }
+    
+    func getUserId() throws -> String {
+        return idHandler.userId
+    }
+    
+    func updateUserId(value: String) throws {
+        return idHandler.userId = value
+    }
+    
     func getString(key: String, defaultValue: String) throws -> String {
         return VarioqubFacade.shared.getString(for: VarioqubFlag(rawValue: key), defaultValue: defaultValue)
     }
diff --git a/ios/varioqub_configs.podspec b/ios/varioqub_configs.podspec
index d99d1f8..c39e5de 100644
--- a/ios/varioqub_configs.podspec
+++ b/ios/varioqub_configs.podspec
@@ -4,20 +4,20 @@
 #
 Pod::Spec.new do |s|
   s.name             = 'varioqub_configs'
-  s.version          = '0.0.3'
+  s.version          = '0.6.1'
   s.summary          = 'Flutter plugin providing work with remote configs,experiments and A/B testing via Varioqub.'
   s.description      = <<-DESC
   Flutter plugin providing work with remote configs,
   experiments and A/B testing via Varioqub.
   Read the README for full details.
                        DESC
-  s.homepage         = 'http://example.com'
+  s.homepage         = 'https://github.com/meg4cyberc4t/varioqub_configs'
   s.license          = { :file => '../LICENSE' }
   s.author           = { 'Igor Molchanov' => 'meg4cyberc4t@gmail.com' }
   s.source           = { :path => '.' }
   s.source_files = 'Classes/**/*'
   s.dependency 'Flutter'
-  s.dependency 'Varioqub', '~> 0.5'
+  s.dependency 'Varioqub', '~> 0.6'
   s.platform = :ios, '11.0'
   s.static_framework = true
 
diff --git a/lib/src/messages.g.dart b/lib/src/messages.g.dart
index 3c6bf9c..d4c1df8 100644
--- a/lib/src/messages.g.dart
+++ b/lib/src/messages.g.dart
@@ -113,6 +113,112 @@ class VarioqubSender {
     }
   }
 
+  Future<String> getDeviceId() async {
+    const String __pigeon_channelName =
+        'dev.flutter.pigeon.varioqub_configs.VarioqubSender.getDeviceId';
+    final BasicMessageChannel<Object?> __pigeon_channel =
+        BasicMessageChannel<Object?>(
+      __pigeon_channelName,
+      pigeonChannelCodec,
+      binaryMessenger: __pigeon_binaryMessenger,
+    );
+    final List<Object?>? __pigeon_replyList =
+        await __pigeon_channel.send(null) as List<Object?>?;
+    if (__pigeon_replyList == null) {
+      throw _createConnectionError(__pigeon_channelName);
+    } else if (__pigeon_replyList.length > 1) {
+      throw PlatformException(
+        code: __pigeon_replyList[0]! as String,
+        message: __pigeon_replyList[1] as String?,
+        details: __pigeon_replyList[2],
+      );
+    } else if (__pigeon_replyList[0] == null) {
+      throw PlatformException(
+        code: 'null-error',
+        message: 'Host platform returned null value for non-null return value.',
+      );
+    } else {
+      return (__pigeon_replyList[0] as String?)!;
+    }
+  }
+
+  Future<void> updateDeviceId(String value) async {
+    const String __pigeon_channelName =
+        'dev.flutter.pigeon.varioqub_configs.VarioqubSender.updateDeviceId';
+    final BasicMessageChannel<Object?> __pigeon_channel =
+        BasicMessageChannel<Object?>(
+      __pigeon_channelName,
+      pigeonChannelCodec,
+      binaryMessenger: __pigeon_binaryMessenger,
+    );
+    final List<Object?>? __pigeon_replyList =
+        await __pigeon_channel.send(<Object?>[value]) as List<Object?>?;
+    if (__pigeon_replyList == null) {
+      throw _createConnectionError(__pigeon_channelName);
+    } else if (__pigeon_replyList.length > 1) {
+      throw PlatformException(
+        code: __pigeon_replyList[0]! as String,
+        message: __pigeon_replyList[1] as String?,
+        details: __pigeon_replyList[2],
+      );
+    } else {
+      return;
+    }
+  }
+
+  Future<String> getUserId() async {
+    const String __pigeon_channelName =
+        'dev.flutter.pigeon.varioqub_configs.VarioqubSender.getUserId';
+    final BasicMessageChannel<Object?> __pigeon_channel =
+        BasicMessageChannel<Object?>(
+      __pigeon_channelName,
+      pigeonChannelCodec,
+      binaryMessenger: __pigeon_binaryMessenger,
+    );
+    final List<Object?>? __pigeon_replyList =
+        await __pigeon_channel.send(null) as List<Object?>?;
+    if (__pigeon_replyList == null) {
+      throw _createConnectionError(__pigeon_channelName);
+    } else if (__pigeon_replyList.length > 1) {
+      throw PlatformException(
+        code: __pigeon_replyList[0]! as String,
+        message: __pigeon_replyList[1] as String?,
+        details: __pigeon_replyList[2],
+      );
+    } else if (__pigeon_replyList[0] == null) {
+      throw PlatformException(
+        code: 'null-error',
+        message: 'Host platform returned null value for non-null return value.',
+      );
+    } else {
+      return (__pigeon_replyList[0] as String?)!;
+    }
+  }
+
+  Future<void> updateUserId(String value) async {
+    const String __pigeon_channelName =
+        'dev.flutter.pigeon.varioqub_configs.VarioqubSender.updateUserId';
+    final BasicMessageChannel<Object?> __pigeon_channel =
+        BasicMessageChannel<Object?>(
+      __pigeon_channelName,
+      pigeonChannelCodec,
+      binaryMessenger: __pigeon_binaryMessenger,
+    );
+    final List<Object?>? __pigeon_replyList =
+        await __pigeon_channel.send(<Object?>[value]) as List<Object?>?;
+    if (__pigeon_replyList == null) {
+      throw _createConnectionError(__pigeon_channelName);
+    } else if (__pigeon_replyList.length > 1) {
+      throw PlatformException(
+        code: __pigeon_replyList[0]! as String,
+        message: __pigeon_replyList[1] as String?,
+        details: __pigeon_replyList[2],
+      );
+    } else {
+      return;
+    }
+  }
+
   Future<void> fetchConfig() async {
     const String __pigeon_channelName =
         'dev.flutter.pigeon.varioqub_configs.VarioqubSender.fetchConfig';
diff --git a/lib/src/platform/varioqub.dart b/lib/src/platform/varioqub.dart
index 46e9edf..45de152 100644
--- a/lib/src/platform/varioqub.dart
+++ b/lib/src/platform/varioqub.dart
@@ -29,6 +29,22 @@ abstract interface class VarioqubConfigs {
   /// To do this, specify it in the appropriate field in A/B experiments.
   Future<String> getId();
 
+  /// Getting the DeviceID from the metric.
+  /// It is used for analysis and experiments.
+  Future<String> getDeviceId();
+
+  /// Updating the DeviceID in metrics.
+  /// It is used for analysis and experiments.
+  Future<void> updateDeviceId(final String value);
+
+  /// Getting the UserID from the metric.
+  /// It is used for analysis and experiments.
+  Future<String> getUserId();
+
+  /// Updating the UserID in metrics.
+  /// It is used for analysis and experiments.
+  Future<void> updateUserId(final String value);
+
   /// Adding default values
   Future<void> setDefaults(final Map<String, Object> values);
 
@@ -91,6 +107,19 @@ final class _VarioqubPlatform implements VarioqubConfigs {
   @override
   Future<String> getId() async => _sender.getId();
 
+  @override
+  Future<String> getDeviceId() async => _sender.getDeviceId();
+
+  @override
+  Future<void> updateDeviceId(final String value) =>
+      _sender.updateDeviceId(value);
+
+  @override
+  Future<String> getUserId() async => _sender.getUserId();
+
+  @override
+  Future<void> updateUserId(final String value) => _sender.updateUserId(value);
+
   @override
   Future<String> getString({
     required final String key,
diff --git a/pigeons/messages.dart b/pigeons/messages.dart
index 10600d3..6d0c28f 100644
--- a/pigeons/messages.dart
+++ b/pigeons/messages.dart
@@ -11,7 +11,10 @@ import 'package:pigeon/pigeon.dart';
     dartOptions: DartOptions(),
     kotlinOut:
         'android/src/main/kotlin/com/meg4cyberc4t/varioqub_configs/Messages.g.kt',
-    kotlinOptions: KotlinOptions(),
+    kotlinOptions: KotlinOptions(
+      errorClassName: 'FlutterError',
+      package: 'com.meg4cyberc4t.varioqub_configs',
+    ),
     swiftOut: 'ios/Classes/Messages.g.swift',
     swiftOptions: SwiftOptions(),
     copyrightHeader: 'pigeons/copyright.txt',
@@ -52,6 +55,12 @@ final class PigeonBuildSettings {
 abstract class VarioqubSender {
   void build(final PigeonBuildSettings settings);
 
+  String getDeviceId();
+  void updateDeviceId(final String value);
+
+  String getUserId();
+  void updateUserId(final String value);
+
   @async
   void fetchConfig();
 
diff --git a/pubspec.yaml b/pubspec.yaml
index f7aba32..2f0aec7 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: varioqub_configs
 description: "Flutter plugin providing work with remote configs, experiments and A/B testing via Varioqub"
-version: 0.6.0
+version: 0.6.1
 repository: https://github.com/meg4cyberc4t/varioqub_configs
 homepage: https://github.com/meg4cyberc4t/varioqub_configs
 issue_tracker: https://github.com/meg4cyberc4t/varioqub_configs/issues