AppUFO

Localise your apps with AI

AppUFO helps developers and indie makers localise apps faster with AI-powered translations built specifically for software. Import your localisation files, translate into 36+ languages, and export everything back to your project in seconds.

Built for Developers

• Translate .xcstrings.
• Manage and localise multiple app projects.
• Preserve placeholders like %@, %d, %lld, ICU formatting, and plural rules.
• Keep app names, product terms, and glossary entries exactly as you define them.
• Use app context to produce more natural UI translations.
• Detect missing, duplicate, and untranslated strings.
• Preview translations before exporting.
• Keep translations within your UI's character limits.

Unlike generic machine translation, AppUFO is optimised for app localisation. It respects formatting, character limits, platform conventions, and app context, producing translations that require less manual editing.

Bring your own OpenAI API key, or use AppUFO Pro to translate without managing API usage yourself.

Designed for Fast Iteration

• Batch translate thousands of strings in seconds with parallel processing.
• Retry only failed or selected translations.
• Instantly translate back to the source language to verify accuracy.
• Export directly back to your project with no extra cleanup.
• Keep a version history of your .xcstrings files so you can restore previous translations.

Whether you're shipping your first indie app or maintaining a large production project, AppUFO helps you localise confidently and spend more time building.

Translate once. Ship everywhere.

UNLOCK PREMIUM FEATURES AppUFO Pro is available with a monthly or yearly subscription. If you choose to purchase AppUFO Pro, payment will be charged to your iTunes account, and your account will be charged for renewal 24-hours prior to the end of the current period. Your subscription will automatically renew unless cancelled at least 24hrs before the end of the current period. Subscriptions may be managed by the user and Auto-renewal may be turned off at any time by going to the ‘Manage Subscription’ page after purchase. Any unused portion of the free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.