YoonSTT: Fast STT Converter

Speech to Text & Subtitles

$2.99 · Designed for iPad. Not verified for macOS.

Create accurate subtitles from video or audio with ease. This app is a SwiftUI-based iOS subtitle and translation tool designed for creators, students, and professionals who need fast, clean, and editable captions. --- **From media to subtitles — simple and flexible** • Import videos directly from your Photos library • Or load audio files such as Voice Memos • Automatically extract audio from video • Choose your speech recognition language • Transcribe using Apple’s on-device speech recognition Once transcription is complete, your session is saved so you can edit, translate, and export anytime. --- **Translate only when you want** • Original transcription is generated first • Select a target language and translate on demand • View original text and translation side by side • Keep full control over when and how translation happens --- **Smart subtitle generation** Transcribed segments are intelligently grouped into readable subtitle units: • Sentence boundaries and punctuation awareness • Pause-based segmentation • Optimal subtitle duration (1–3.5 seconds) • Two-line layout with balanced line breaks • Export-ready formatting for professional use Supported formats: • SRT • VTT --- **Edit, copy, and share** • Edit original text freely • Copy subtitles to clipboard • Share subtitle files directly • Choose between Original, Translation, or Subtitles views --- **Designed for clarity** • Clean white background with black text • Liquid-glass inspired UI containers • Smooth splash and transition animations • Portrait-only layout for focused editing --- Whether you’re preparing subtitles for social media, interviews, lectures, or multilingual content, this app helps you go from media to subtitles — quickly and clearly. Download and start turning speech into subtitles today.

Ratings & Reviews

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What’s New in Version 1.2 Clearer and more readable transcripts Converted text is now neatly organized by sentence. Long sentences automatically wrap into multiple lines, and each paragraph includes a timestamp \[00:00\], making it easier to find specific parts of the audio. Design improvements The interface has been optimized for better clarity and consistency in Dark Mode. Other improvements Improved sentence recognition accuracy and fixed minor bugs.

Version 1.2

The developer, Dohyeon Kim, 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
    • Dohyeon Kim
    Size
    • 4.2 MB
    Category
    • Photo & Video
    Compatibility
    Requires iOS 18.6 or later.
    • iPhone
      Requires iOS 18.6 or later.
    • iPad
      Requires iPadOS 18.6 or later.
    • Mac
      Requires macOS 15.6 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.6 or later.
    Age Rating
    4+
    Copyright
    • © 2026_DORL studio
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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