Mobile app localization services
Ship your app in 300+ languages without slowing down development. Crowdin is the all-in-one app localization platform that combines Agentic AI with developer-first automation to deliver world-class mobile experiences.
Agentic AI that understands your app’s UI
Mobile apps break easily during localization. Agentic AI is an autonomous teammate that reads your code, solves UI overflows, and executes complex tasks.
Agentic AI
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Autonomous reasoning
Standard AI waits for prompts. Agentic AI plans tasks (checking glossaries, fixing errors, and adjusting tone).
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Self-correcting UI translations
If a German translation breaks an iOS button, the Agent detects the limit and rewrites it to fit the screen.
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Context understanding
It connects to your repo to see how a string is used in the code, so it knows if "Home" is a house icon or a menu item.
All the tools you need to localize mobile apps
Unlike a traditional app localization agency, Crowdin integrates into your development workflow. We solve the context gap by showing linguists how their text looks on a mobile screen. This prevents broken layout and translation mistakes.
Continuous sync
Push new strings and pull translations automatically.
Context automation
AI explains the strings to translators and saves the managers' time.
Over-the-air updates
Real-time updates without re-submitting to the App Store.
Screenshots
Automatically tag screenshots to string keys so translators see the exact UI element they are translating.
Quality assurance
Automated checks for placeholders, character limits, and tag consistency.
4 steps to localize your app
Design
Start in Figma and see how localized text fits your frames.
Develop
Connect your repo. Crowdin handles .strings, .xml, .json, and more.
Translate
Use AI Localization for instant drafts, then proofread with professional services.
Deploy
Sync back to your build or use OTA for continuous delivery.