App UFO
Drag in your iOS app's translation file and get it translated into 36+ languages automatically, without breaking the placeholders and formatting your app's code depends on.
🔗 Visit App UFO
Description
Localizing an iOS app manually means translating hundreds of short strings by hand or paying a translation agency, all while making sure special placeholders (like %@ or {name}) survive the process intact — get that wrong and your app crashes or shows broken text in production. App UFO automates that specific, fiddly task for the Apple .xcstrings format that modern iOS apps use.
App UFO is a macOS app where you drag and drop your .xcstrings localization file and it translates all strings into 36 or more languages using AI, with placeholder protection built in so variables don't get mangled, brand-name protection so your product name doesn't get accidentally translated, and reverse-translation verification to catch errors before you ship. It also enforces character limits so translated text still fits your UI instead of overflowing buttons and labels. It's priced as €9.99/month for 25,000 AI phrases, €69.99/year for 250,000, or a €39.99 lifetime tier where you bring your own AI API key instead of paying per-phrase.
💬 Our review
The short version: if you're a solo iOS developer who's been putting off localization because doing it properly (with placeholder safety and UI-fit checks) by hand is tedious, App UFO automates exactly that grunt work for a low one-time or monthly cost.
There isn't a dominant direct competitor doing the same .xcstrings-specific workflow with placeholder and UI-fit protection — general AI translation tools (DeepL, ChatGPT) can translate the text but won't automatically respect Apple's format or check character limits against your UI. The lifetime €39.99 BYO-API-key tier is the standout value option if you're comfortable managing your own AI key, since it removes the recurring phrase-count ceiling entirely. The main risk is trusting AI translation quality across 36+ languages without a human reviewer — reverse-translation verification helps but isn't a substitute for a native speaker sanity check on languages that matter most to your user base.
💰 Pricing
📊 Global score
🤖 AI-enriched data
Mensuel €9.99 (25 000 phrases IA) · Annuel €69.99 (250 000 phrases) · À vie €39.99 (avec votre propre clé API IA)
Pros
Protège les placeholders et le nom de marque pendant la traduction
Vérification par traduction inverse pour détecter les erreurs
Contrôle des limites de caractères pour l'UI
Tier à vie avec clé API perso = coût marginal quasi nul
Cons
Page pricing dédiée en 404, infos extraites de la homepage
Qualité de traduction IA sans relecture humaine native
Aucune alternative directe listée pour comparer
Réservé à macOS et au format .xcstrings