YoonSTT: Fast STT Converter
Photo & VideoProductivity

YoonSTT: Fast STT Converter

Dohyeon Kim · released 29 Jan 2026 · Open in App Store ↗

Revenue 30d not estimated
Downloads 30d not estimated
Rating 5.00 2 reviews

No in-app products collected for this app.

RatingPrice
South Korea100%25.00₩4,400 $3.11
United Arab Emirates<1%0AED 12.99 $3.54
Afghanistan<1%0$2.99
Antigua And Barbuda<1%0$2.99
Anguilla<1%0$2.99
Albania<1%0$3.99
Armenia<1%0$3.99
Angola<1%0$2.99
Argentina<1%0$2.99
Austria<1%0€2.99 $3.46

The store shows a different set in every country

Description

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.

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**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.

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**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

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**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

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**Edit, copy, and share**

Edit original text freely

Copy subtitles to clipboard

Share subtitle files directly

Choose between Original, Translation, or Subtitles views

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**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

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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.