Easily add permanent subtitles to any video. Transcribe audio in one language, optionally translate to another, and burn both tracks directly into the video for universal playback. Customize appearance and timing for clear, readable captions.
1.8.3
April 27, 2026
Added a contact option in Settings so you can reach support more easily. Improved “Original Resolution & FPS” export. When exporting at original quality, SubStamp now keeps the source video’s frame rate. Improved export wording to make the original-quality option clearer.
MoreUnlimited save and share for exported videos
$9.99
Lifetime
Purchase for permanent unlimited save and share
SubStamp does not contain advertisements, providing an uninterrupted user experience.
SubStamp is free to download and use, with optional in-app purchases available for advanced features or content. A weekly subscription is offered at $1.99.
SubStamp is compatible with both iPhone and iPad devices.
The app was last updated on April 27, 2026, with version 1.8.3. Update frequency indicates ongoing development and support.
Yes, SubStamp allows you to preview, edit, and fix captions for text, timing, and line breaks before exporting the final video.
SubStamp has an age rating of 4+, making it suitable for a wide range of users.
SubStamp supports translating subtitles to a second language. It offers standard and AI translation modes, and can fall back to translating via English if a direct pair isn't available.
You can preserve the original audio and choose export quality and resolution where available. The finished video can be saved to Photos or shared to other apps.
