How to Add Subtitles to a Video on iPhone (Free, 2026)
Most videos are watched on mute, so captions are no longer a nice-to-have — they are the difference between someone watching and someone scrolling past. iOS has no built-in way to burn subtitles into a video, so you need one of three routes.
Here is how each one actually works in 2026, and what each one costs you.
Method 1: A dedicated captions app (fastest)
This is the only route that transcribes, styles and exports in one place without sending your video anywhere.
Open Auto Captions
Free on the App Store and Google Play. Transcription runs on the phone, so nothing is uploaded and it works offline.
Pick your clip and let it transcribe
Word-by-word timed captions appear in seconds. Tap any word to correct it.
Style, then export
Choose a caption style, position them on the frame, and export with no watermark — or grab the .srt instead.
Method 2: CapCut auto-captions (free, but heavier)
CapCut generates captions automatically and is genuinely capable. The trade-offs are that it is a full video editor rather than a captions tool, several caption styles and effects sit behind CapCut Pro, and processing may involve their servers depending on the feature and region.
If you already edit in CapCut, adding captions there saves a round trip. If all you want is subtitles on a finished clip, it is a lot of app for one job.
Method 3: Type them by hand
iMovie and most editors let you add text boxes and time them manually. It is free and gives total control, but a one-minute talking clip is roughly 150 words — expect to spend far longer positioning and timing text than the video lasts. Worth it only for a short clip where every frame matters.
Which should you use?
- You want captions on a finished clip, now: a dedicated captions app — one job, one minute.
- You already edit in CapCut: use its built-in captions and stay in one timeline.
- A short clip needing frame-perfect text: type it by hand in iMovie.
