---
title: "Why Flutter localization does not work on iOS platform?"
description: "Learn why localization in Flutter may not work on iOS platform and how to fix it. Discover why updating the Info.plist file with supported locales is crucial for successful localization in iOS and how it differs from Android app localization."
category: flutter
date: 2023-03-29
updated: 2026-10-09
canonical: https://localizely.com/i18n-questions/flutter/why-flutter-localization-does-not-work-on-ios-platform/
---

# Why Flutter localization does not work on iOS platform?

Flutter localization works on both Android and iOS platforms, but localizing a Flutter app for iOS platform requires additional configuration compared to Android. One of the main reasons why localization may not work on iOS is that the `Info.plist` file needs to be updated with the supported locales configuration. This file is an essential configuration file in iOS development and contains information about the app's name, version, supported device orientations, and other critical details. To add support for localization, the developer must include a list of supported locales in the `Info.plist` file.

To make sure your Flutter app runs smoothly on iOS, you need to ensure that the list of supported locales in the `Info.plist` file matches the locales specified in your app. Here's a code snippet that demonstrates how to add configuration for the English and German (Germany) languages. Note that the entries are language IDs, so a regional variant is written with a hyphen (`de-DE`), not with an underscore.

The `ios/Runner/Info.plist` file:
```xml
<key>CFBundleLocalizations</key>
<array>
  <string>en</string>
  <string>de-DE</string>
</array>
```

Alternatively, you can add the languages in Xcode (select the `Runner` project, open the `Info` tab, and click `+` in the **Localizations** section), which is the approach the current Flutter documentation describes. Xcode then creates empty `.strings` files and records the languages in the `project.pbxproj` file.

Source: https://localizely.com/i18n-questions/flutter/why-flutter-localization-does-not-work-on-ios-platform/