SubTitler - Auto Captions
Add captions to one video
Free · Designed for iPad. Not verified for macOS.
Create auto subtitles for one video, burn captions into a new MP4, and keep the original untouched.
SubTitler is an automatic caption app for adding burned-in subtitles and captions to one selected video.
Choose a video and SubTitler transcribes the audio on iPhone, places readable captions on the video, and saves a new MP4 while leaving the original untouched.
Speech language detection is automatic by default. If detection is not a good fit, choose a language from the in-app searchable list before transcription.
Useful for
- Adding captions before posting to social apps
- Making spoken videos easier to watch
- Creating captioned videos without typing every line by hand
Main features
- Choose one video and create captions automatically
- Burn captions into the exported video
- Preserve the video's orientation and aspect ratio
- Save the generated video to Photos
- Run transcription and export on device
- Use automatic speech language detection or choose a language
- Correct frequently misheard names, brands, and specialist terms
All features are available for free. There is no paywall, subscription, or in-app purchase flow.
SubTitler does not include multi-video joining, automatic cutting, BGM, or manual timeline editing.
Terms of Use: https://kyodo.mo-gmo.com/en/terms/
Privacy Policy: https://kyodo.mo-gmo.com/en/privacy-policy/
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Added Term Corrections so saved names, brands, and specialist terms are applied to captions automatically. Removed the remaining purchase and restore screens; all features are free.
The developer, Ryusei Mogi, 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
- Provider
- Ryusei Mogi
- Size
- 5.3 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Mogmo Lab