じまくん - 大きな字幕

In-app purchases
Content rating
Everyone
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Downloads
Content rating
Everyone
In-App Purchases
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About this app

Jimakun is an app that displays conversations with family members who have difficulty hearing, using large, full-screen subtitles.

[Main Features]
- Displays Japanese and English audio with large subtitles
- Saves the previous subtitle to check the flow of the conversation
- Displays Japanese and English translations
- Adjustable font size and background color for better readability
- Registers names and places in the dictionary
- No account registration required, no ads

[Privacy]
Speech recognition is performed on the device, and audio and subtitles are not saved. The speech recognition model and necessary translation models are downloaded only the first time you use the app.

[Pricing]
You can try all features for free for 7 days after downloading. After the trial period, it is a one-time purchase of 980 yen in Japan for continued use. There are no monthly fees. In other regions, the price displayed on Google Play applies.

[Caution]
Speech recognition and translation results may be inaccurate. For important matters related to medical, legal, or safety issues, please always confirm with the other party.
Conversations with family members who have difficulty hearing are displayed as large, full-screen subtitles. Audio is processed within the device and is not saved.
Updated on
Aug 14, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    App activity, App info and performance, and Device or other IDs
  • Data is encrypted in transit
  • Data can’t be deleted

What’s new

Initial Android release with real-time on-device captions, responsive layouts for phones and tablets, and stable live transcription.
Content rating
Everyone
In-App Purchases
Learn more

App support

About the developer
TIIDA TECH LTD
support@tiidatech.com
OFFICE 16183 182-184 HIGH STREET NORTH LONDON E6 2JA United Kingdom
+44 7380 400120