Mojiokoshi: Voice to Text
Offline AI transcription
Only for iPhone
Free · In‑App Purchases
iPhone
Transcribe, translate, and get AI phrasing — all on your device. Your audio never leaves. For meetings, interviews, and talking to people abroad.
On-device AI transcription. Your audio never leaves your iPhone.
Mojiokoshi turns recordings and your own videos into text using on-device AI. All recognition happens right on your iPhone — your audio is never uploaded to the internet. That means it works on a plane, underground, or anywhere with no signal.
■ Highlights
• Fully offline — audio and video never leave your device
• Record and transcribe — speak and get text on the spot
• Transcribe from video — pull text from videos in your library
• Japanese, English, and Chinese, with automatic language detection
• Chinese shown in Simplified or Traditional script
• Translate transcripts into many languages — on-device, offline once language packs are installed
• AI Advisor "Intent Phrasing" — turn what you mean into natural, situation-aware wording (on-device AI, Pro)
• Export text (.txt) and subtitles (.srt) (Pro)
• Search, organize, copy, and share your history
• Choose your model — from lightweight to high-accuracy Large v3
• Light/Dark support with 7 American-retro themes
■ Great for
Meeting minutes, interview transcripts, lecture and field notes, organizing voice memos, creating subtitles for videos, and finding the right way to say something to people abroad.
■ Privacy first
No analytics, no ad SDKs. Transcripts are stored only on your device. We do not collect your data.
■ Pricing
Free: up to 1 minute per transcription, 5 per day.
Mojiokoshi Pro removes the time and count limits and unlocks text / subtitle (SRT) export and the AI Advisor.
• Monthly ¥680
• Yearly ¥5,700 (save about 30%)
Subscriptions are charged to your Apple ID at confirmation of purchase and renew automatically unless canceled at least 24 hours before the end of the period. Manage or cancel anytime in iPhone Settings ▸ Apple ID ▸ Subscriptions.
Privacy Policy: https://gyougi.github.io/mojiokoshi-legal/privacy.html
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Version 1.1 adds new features that all run on your device.
• Translate — turn transcripts into other languages; works offline once language packs are installed (on-device)
• AI Advisor "Intent Phrasing" — turn what you mean into natural, situation-aware wording (on-device AI, Pro / iOS 26)
• Seven new American-retro themes
• Pick your recognition model and language right on the record and video screens
• Easier management of high-accuracy (Qwen) model downloads, deletion, and storage
• Added an intro guide that walks first-time users through the main features (revisit anytime from Settings)
• Stability improvements and small fixes
Thanks for using Mojiokoshi!
The developer, GYOU GI, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- GYOU GI
- Size
- 28.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later.
- iPhone
- Languages
English and 3 more
- English, Japanese, Simplified Chinese, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Mojiokoshi Pro (Yearly) $34.99
- Mojiokoshi Pro (Monthly) $3.99
- Copyright
- © 2026 GYOU GI
