UnderText
Type - Translate - Learn
Only for iPhone
Free · In-App Purchases
iPhone
Learn a new language while you type. UnderText translates and corrects your sentences directly from the keyboard, turning everyday chatting into effortless learning.
UnderText transforms language learning by turning your iOS keyboard into a smart companion. As you type in your everyday conversations, UnderText translates your text into your target language instantly so you understand how your expressions come across.
If you mix languages or type imperfect sentences, UnderText suggests corrected versions, helping you improve grammar and vocabulary. The keyboard supports multiple languages and lets you switch effortlessly.
To reinforce learning, UnderText generates flashcards from your translations, so you can review new words and phrases later. The keyboard can work offline, protecting your privacy.
Whether you’re a beginner or advanced learner, UnderText makes practice effortless by integrating language learning into the way you already communicate.
Terms of Use: https://xntuan.github.io/UnderText/terms.html
Privacy Policy: https://xntuan.github.io/UnderText/privacy.html
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1. Live Translation for Everyone (Freemium Update):
- Live translation now unlimited for FREE users
- Automatic migration on first launch
- No user action needed - just works!
2. AI-Powered Tone Adjustment (Premium Feature) - Transform translations with 3 AI tone styles:
- Professional - Formal, business-appropriate
- Friendly - Casual, warm, conversational
- Concise - Short, direct, essential info only
How it works: Translate text → Tap to expand → "Adjust Tone" button → Select style → AI transforms instantly
The developer, Xuan Tuan Nguyen, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Xuan Tuan Nguyen
- Size
- 4.8 MB
- Category
- Productivity
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later.
- iPhone
- Languages
English and 5 more
- English, French, German, Korean, Spanish, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- UnderText Premium (monthly) USD 2.99
- UnderText Premium (Yearly) USD 23.99
- Copyright
- © 2025 Nguyen Xuan Tuan