How to Transcribe a Video on iPhone

The fastest way to transcribe a video on iPhone is to run the clip through an on-device transcriber, read the text against the footage, and fix the handful of words that need it. Here's the workflow, and where Voice Memos and Notes fit, and don't.

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Transcribe a video on iPhone without sending the audio anywhere

Transcription doesn't need the cloud. Montaj transcribes your clip's audio track on your device, so the recording never gets uploaded to process it. Once the transcript exists, every word is aligned to the exact moment it was spoken, so you can tap a word and jump straight to that point in the clip. Useful for finding one line in a 20-minute interview without scrubbing through it by hand.

What Voice Memos and Notes transcribe, and what they don't

Voice Memos transcribes speech you record inside the app, on iPhone 12 or later, in English (all variants), Spanish, Portuguese, Italian, French, German, Japanese, Korean, and Simplified or Traditional Chinese. Notes can record and transcribe audio the same way, with the same device and language requirements. Live Captions is a third option, but a different one again. It transcribes whatever audio is playing, live, in any app, on iPhone 11 or later, without saving a transcript anywhere.

None of the three solve "I have a video file and I need its text." Voice Memos and Notes only transcribe audio recorded inside those apps; Live Captions doesn't save anything at all. If your footage already exists as a video , filmed earlier, sent by someone else, downloaded from somewhere , you need a tool built to open that file and transcribe it, not a voice recorder or a live overlay.

That gap matters most for anything that already exists as a finished recording. An interview shot last week, a lecture someone sent over, a clip pulled off an old hard drive. None of Apple's built-in transcription tools were designed to reach into a video file after the fact; they all assume the audio is being captured live, in the app doing the transcribing.

From transcript to editable captions

Once you have the words, the transcript itself is the deliverable, but it doesn't have to stop there. Montaj can turn that same transcript into word-by-word captions burned into the video, and any correction you make to the text , a misspelled name, a mangled brand , updates the timing automatically, because the correction only ever touches the word, never the alignment underneath it. To transcribe a video on iPhone and end up with both a clean text file and captioned footage, one pass through Montaj covers both.