Quick Captions: Subtitles

Add subtitles to a video directly on your iPhone. Quick Captions transcribes the speech and burns subtitles into the video. No account or video uploads.

Recognition happens on the device. The video never leaves your phone and there is no sign-up. The recognition model, a few hundred megabytes, downloads before your first clip, and a translation model comes down the first time you pick a language. Once the models are downloaded, recognition and translation work with the network off.

WHAT IT DOES

Works with one clip at a time: record it, choose it from your library or share it from another app. Recognition starts automatically, with nothing to set up first.

Turns speech into subtitles and embeds them in the picture. Because the text becomes part of the video rather than a separate track, it remains visible after sharing, uploading or re-encoding. It looks the same in a message, a reel or a short.

Detects the spoken language automatically, so there is nothing to choose first. It recognises speech in these European languages: Bulgarian, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hungarian, Italian, Latvian, Lithuanian, Maltese, Polish, Portuguese, Romanian, Russian, Slovak, Slovenian, Spanish, Swedish and Ukrainian.

Uses the system typeface, so Cyrillic, Greek and Central European characters are displayed correctly.

Translates the captions into English, on the phone, for the languages it carries a model for. The translation runs one way and, like the rest, never leaves the device.

Lets you correct any line before you export, including names, places and jargon that were misheard.

Can remove pauses automatically, making the clip shorter and tighter without manual cutting.

Exports through the standard share sheet: choose the video with embedded subtitles, a version with pauses removed or an .srt transcript.

Reads only the clip you hand it. It never asks to browse your entire photo library and imposes no artificial limit on video length.

WHAT IT DOES NOT DO

It does not open an existing subtitle file. It creates subtitles from your video's speech; you can export the captioned video or an .srt file.

It is not a full production suite. It focuses on adding subtitles to your clips.

FAQ

Can I put subtitles on a video on my iPhone?
Yes. Pick a clip from your library, or share one in from another app, and the captions are written and burned in on the phone itself.

How do I add subtitles to an already recorded video?
The same way as a fresh one. Anything in your library goes through the same single pass.

What does burn subtitles into a video mean?
It means the text is drawn into the frames, so it plays back anywhere, in any app or on any site, without a separate subtitle track to switch on.

Can subtitles be automatically generated?
The app listens, writes the lines and places them; you only step in to fix a word.

How do I add subtitles to reels on iPhone?
Caption the clip first, then share it on. Because the captions are burned in, they stay put wherever the video is posted.

How do I export SRT from a video?
Quick Captions exports the recognised text as an .srt file through the share menu, so you can use it in another app. It creates SRT files but cannot open an existing one.

How do I remove silence from a video automatically?
Switch on pause removal and the gaps between sentences will be cut from the exported video.

Can I subtitle a video without the internet?
Recognition runs entirely on the device once the model is downloaded, so aeroplane mode is fine.

How do I translate subtitles to English?
The app translates the lines into English on the phone, from the languages it has a model for. The rest are recognised but not translated.