App localization

App localization for iOS & Android

Native app translations for iOS and Android—from UI copy to App Store descriptions. With ASO for more downloads.

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ISO 17100
ASO included
Fast delivery

Our app localization services

iOS apps

strings, stringsdict, Localizable

Android apps

XML, strings.xml, arrays.xml

App Store / Play Store

Descriptions, keywords, screenshots

ASO optimization

Keyword research for more downloads

Why Tratext for app localization?

Native speakers for all markets
App Store optimization (ASO)
Character limit checks
Cultural adaptation
Fast iteration
Quality assurance

App Store optimization

We optimize your app store listings for maximum visibility and more downloads.

  • Title & subtitle
  • Description
  • Keywords
  • Screenshot copy
About the service

What is app localization?

App localization is the complete adaptation of your mobile application to the linguistic and cultural requirements of international markets.

Successful app localization goes far beyond simple translation. At Tratext, we adapt UI copy, app store descriptions, push notifications, and in-app content. Our translators are familiar with character limits and the design requirements of mobile interfaces.

We support all common platforms—iOS, Android, Flutter, React Native—and work with your development tools. From app store optimization (ASO) to full app localization, we support you on your journey into international markets.

Frequently asked questions

App localization FAQ

Which platforms do you support?
We localize for iOS, Android, Flutter, React Native, and all common cross-platform frameworks. PWAs and hybrid apps are also no problem.
Can you also localize app store descriptions?
Yes, we provide full ASO localization: app title, subtitle, descriptions, keywords, and screenshots for the App Store and Google Play.
How do you handle character limits?
Our translators understand the UI requirements of mobile apps and work with context-sensitive screenshots to adapt text optimally.
How much does app localization cost?
Costs depend on app size and target languages. A typical app with 5,000 words starts at approx. €600 per language.
Do you also offer QA testing?
Yes, we offer linguistic QA testing on real devices to identify layout issues and translation errors in context.

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