subMatik
On-device AI subtitles
About
This app transforms your iPhone into a subtitle creation studio. It automatically generates accurate, timed captions for any video or audio file directly on your device, supporting over 70 languages. You can also translate existing captions or burn them directly into your video for easy sharing.
What's New in subMatik
1.0.3
September 10, 2026
• Fixes the "not enough space" failures: subMatik now checks free space before it starts and tells you exactly how much it needs • Storage no longer piles up: saved originals are capped, and the new Settings > Storage section frees space in one tap • Clearer error messages, plus fixes for very long videos, cancelled runs and re-burns
MoreFAQ
Does subMatik have ads?
No, subMatik is completely ad-free. The app emphasizes privacy and does not display any advertisements to users.
What devices does subMatik work on?
subMatik requires iOS 16.0 or later and works on iPhone 11 and newer. For the best experience, it is recommended to use an iPhone 14 Pro or newer.
How does subMatik handle privacy?
All transcription and translation processes occur on-device, meaning your audio and video content never leaves your iPhone. The app only uses optional anonymous crash telemetry via Apple MetricKit.
Can I translate subtitles into different languages with subMatik?
Yes, subMatik supports translation for over 70 languages. You can choose between on-device translation using Apple Translation or opt for higher quality translations via Google/DeepL if you provide an API key.
What subtitle formats does subMatik support?
subMatik can export subtitles in the universal SRT format, which is compatible with most video players and platforms. It also allows you to burn subtitles directly into the video pixels, creating an MP4 file with baked-in captions.
How often is subMatik updated?
The latest version of subMatik is 1.0.3, which was last updated on September 10, 2026. Updates typically address bug fixes and feature enhancements.
What is the age rating for subMatik?
subMatik has an age rating of 4+. This indicates it is suitable for users of all ages, with no content restrictions.
How does subMatik's on-device processing benefit users?
On-device processing ensures that your private conversations, family videos, or proprietary content are not uploaded to external servers. This provides a highly private and secure way to generate subtitles.