Caption App for iPhone: Auto Subtitles in One Tap
BlitzCut is a caption app for iPhone that transcribes your video on-device and burns in word-by-word animated subtitles — styled like the captions top creators use, without a cloud upload.



Most iPhone caption apps either transcribe poorly, watermark the export, run everything through a slow cloud server, or give you plain subtitle text that looks nothing like the animated captions performing on TikTok and Reels.
BlitzCut generates captions on your iPhone in seconds — accurate word timings, creator-style presets like bold Hormozi captions or clean minimal subtitles, and full control of font, size, color, and placement. Captions burn into the export, ready for any platform.
Everything you need, in one app
Automatic subtitles
Accurate on-device transcription with per-word timing.
Animated caption styles
Karaoke word-by-word, bold highlight styles, or clean minimal subtitles.
Full styling control
Font, size, color, outline, and placement — tuned for vertical video.
Easy corrections
Fix a misheard word by editing the text; timing stays intact.
How it works
Three steps from raw footage to finished video.
Import your video
Straight from the camera roll — talking-head, vlog, or screen recording.
Captions generate on-device
Fast, accurate transcription with every word timed to your speech.
Pick a style and export
Choose a preset or style your own, then export with captions burned in.
Why creators caption on iPhone with BlitzCut
- On-device transcription — fast, private, works offline
- Word-by-word animated captions, not static subtitle blocks
- Creator-style presets plus full font and color control
- No watermark on exports

Built for creators like you
TikTok and Reels creators
Captions are table stakes for muted viewers — add them in the same app you cut in.
Podcasters clipping on the go
Caption interview clips from your phone before you're back at a desk.
Business owners
Post captioned videos without learning an editor or paying a freelancer.
Try every feature free
Free 3-day trial, then plans from $4.99/week. Cancel anytime — no commitment.
Frequently asked questions
- What is the best caption app for iPhone?
- BlitzCut, if your videos are people talking: captions generate on-device in seconds, come with creator-style animated presets, and export without a watermark. Apps like Captions and Submagic are alternatives that process video in the cloud.
- What app adds subtitles to videos automatically on iPhone?
- BlitzCut adds subtitles automatically: import a video, and the transcription, word timing, and styled captions happen in one pass on the phone itself — no upload, no waiting on a server.
- Are the captions accurate?
- On-device transcription handles clear speech very well, including accented English. When a word is misheard, tap it and type the fix — the timing adjusts automatically.
- Does BlitzCut watermark exports?
- No watermark. During the free 3-day trial you get the full experience; paid plans start at $4.99/week after.
- Who is this not for?
- Videos with no speech, or workflows that need translated subtitles in many languages — dedicated subtitle-translation services fit that better.
Caption your next video on your phone
On-device captions, creator styles, no watermark. Free 3-day trial.
Free to download · 3-day free trial · Cancel anytime