SubTitler - Auto Captions

Ryusei Mogi · Photo & Video

Free
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Chart standing · US

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About

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/

What's new · 1.0.4

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.

Details

DeveloperRyusei Mogi
ReleasedMay 2026
UpdatedAug 2026
Version1.0.4
Size5.3 MB
RequiresiOS 17.0 or later
Age rating4+
LanguagesEnglish, Japanese
PriceFree
Categories Photo & VideoUtilities
Bundle IDcom.mogir.dougajimaku