use.fo - AI Voice Typing

Voice Input + Prompt Shortcuts

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Pay once, use forever! Introducing BYOK (Bring Your Own Key) for lifetime access. Tap to dictate, transcribe voice to text, and rewrite via AI directly in your keyboard. Tired of switching to an AI app, waiting for a response, then copying and pasting back? use.fo puts AI and advanced voice to text directly inside your iPhone keyboard. Works instantly in iMessage, Gmail, WhatsApp, or any text field. ### NO SUBSCRIPTION: BRING YOUR OWN KEY (BYOK) ### Tired of recurring monthly fees? use.fo now supports BYOK (Bring Your Own Key). Simply hook up your own AI API key once, and enjoy lifetime access to all core AI and dictation features without any subscription! Pay once, use forever. ### KEY FEATURES ### 1. VOICE TO TEXT + AI REWRITE (STT) Hold the record button and speak naturally. Our powerful Speech to Text (STT) engine transcribes your voice with incredible accuracy. Better yet, the AI instantly rewrites your words into a polished email, social post, or translation, then drops it right where you were typing. 2. MULTI-SCENARIO PROMPT SHORTCUTS Save your best templates and trigger them with a short slash command like /email or /reply. One tap expands a full paragraph. Perfect for formal emails, workplace updates, social captions, multilingual translation, or quick proofreading. 3. DEEP THINK MODE Have a fuzzy idea? AI asks you a few clarifying questions, identifies what you actually want to say, and writes the precise text for you. 4. CROSS-DEVICE SYNC Your custom Prompt library syncs automatically via your personal Google Drive. Organize prompts on your phone, use them on your desktop. 【WHO IT'S FOR】 Customer support reps, salespeople, PMs, marketers, mobile-first professionals, and creators who need a consistent voice and fast typing in every post. 【iOS NOTES ON VOICE FEATURES】 Due to iOS system restrictions, microphone permission is required for voice features. If use.fo is sleeping in the background, tapping the voice button will briefly open the use.fo app to handle recording and AI processing, then automatically return you to the app you were using. The round-trip takes only a few seconds. 【PRIVACY & SECURITY】 Your privacy is our top priority. All Prompts are stored in your own Google Drive, never on use.fo's servers. AI processing runs on secure cloud infrastructure, and your device never stores any AI provider API keys. Your data stays yours. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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Major Update: Say Hello to BYOK (Bring Your Own Key)! • Added BYOK Support: You can now use your own AI API key to unlock lifetime access. No more monthly subscriptions—pay once, use forever! • Upgraded Voice to Text (STT) Engine: Experience faster, more accurate speech-to-text dictation and real-time audio transcription. • Enhanced AI Rewrite: Improved keyboard integration for seamless text rewriting, proofreading, and tone adjustment across all apps. • Performance improvements and minor bug fixes for a smoother typing experience.

Version 1.1.6

The developer, Hanlin Chang, 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 Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Hanlin Chang
    Size
    • 5.5 MB
    Category
    • Productivity
    Compatibility
    Requires iOS 13 or later.
    • iPhone
      Requires iOS 13 or later.
    • iPad
      Requires iPadOS 13 or later.
    • iPod touch
      Requires iOS 13 or later.
    • Mac
      Requires macOS 13.3 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and 16 more
    • English, Arabic, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Malay, Portuguese, Simplified Chinese, Spanish, Thai, Traditional Chinese, Turkish, Vietnamese
    Age Rating
    4+
    In-App Purchases
    Yes
    • BYOK (Bring Your Own Key) $9.99
    • Pro Annual $69.99
    • Pro Monthly $7.99
    • Learn More
    Copyright
    • © 2026 Usefo Ltd.
  • Privacy Policy

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