App Localization Services: Seamless User Experience, Any Language

App Localization Services You Can Rely On

Expand globally with fast, accurate app localization. Native linguists adapt your iOS and Android apps and store listings in 120+ languages, backed by an ISO 17100 certified workflow and 24/7 project support.

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Maximize Your App's Global Potential With AsiaLocalize

Localized apps win more downloads: a widely cited 2012 Distimo study found that localizing an iPhone app’s text lifted downloads by 128% and revenue by 26% per country.

String files and build integration. We work directly in your resource formats (.strings and .stringsdict on iOS, .xml on Android, JSON and YAML for cross-platform frameworks), so files return build-ready with placeholders, plurals and tokens intact. For regular releases, we set up continuous localization that picks up new strings every sprint.

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Quick definition

What Is App Localization?

App localization adapts a mobile or web app’s text, UI, images, formats and app store listing for a specific language and market. It differs from internationalization, which prepares the code to support many languages; localization is the language and cultural work done for each market.

App Localization at a Glance

Last reviewed: by the AsiaLocalize localization team.

Our App Localization Solutions

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User Experience and User Interface Adaptation

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Content and Multimedia Localization

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Technical and Functional Testing

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Fast and Efficient App Localization

We combine translation technology with Asian market expertise to deliver localized apps quickly, consistently and on time.

Testing before your users see it. Pseudo-localization early on exposes hard-coded strings and fields that cannot expand. We then test the localized build on device to catch truncation, clipped buttons, overlapping labels and mis-rendered scripts before release.

Culturally Relevant App Localization for Asia

Our native, locally based linguists and experienced app developers make your app feel as if it were built in the local language, in 120+ languages including all major Asian languages.

App store listings are a separate job. We adapt titles, descriptions, keyword fields and screenshot captions for each store, because store search ranks on localized metadata: an app translated perfectly but listed in English will not be found.

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Trusted by the world’s leading companies

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Your Reliable Partner for App Localization Services

Let us help your app speak the language of your global users. Our dedicated team delivers accurate and culturally adapted app experiences in over 120 languages.

See how we approached a multilingual toolkit rollout across ASEAN markets in our ASEAN localization case study.

Frequently Asked Questions

App localization adapts your Android and iOS app to different languages and cultures. It’s more than just translation; it ensures your app resonates with users worldwide by adjusting content, design, and functionality to local preferences maintaining cultural relevance

Internationalization (i18n) prepares your code to support any language and region, for example by externalizing strings and handling dates, currencies and right-to-left text. Localization (l10n) then adapts the i18n-ready app for a specific market through translation, cultural adaptation and testing. Our localization engineering team can help with both.

Start with the countries where apps in your category get the most downloads, then review competitors and, if you have already launched, your own download and revenue data by country. Prioritize the markets with the best growth potential. Our guide to the business languages of Asia can help you shortlist.

We flag it before it becomes a layout bug. Pseudo-localization during preparation shows which fields cannot take longer strings, and on-device testing after translation confirms nothing is truncated or overlapping. Where a string genuinely cannot fit, we work with your team on shorter wording rather than letting it clip.

Yes, and we treat it as a separate deliverable. Store titles, descriptions, keyword fields and screenshot captions are adapted per market, because app store search ranks on localized metadata rather than on the language inside your app.

We work directly in iOS .strings and .stringsdict, Android .xml, and JSON or YAML for cross-platform frameworks, returning files with placeholders, plurals and formatting tokens intact.

We localize apps into 120+ languages, including all major Asian languages such as Chinese, Japanese, Korean, Thai, Vietnamese, Indonesian, Malay and Hindi.