Undertekst $1.99

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Undertekst writes out the speech in your videos right on your iPhone. Fix the words on a timeline, give the text your own style and save a new video with the subtitles burned in – ready to share. Nothing is uploaded.

Transcribed on your iPhone

  • Apple’s built-in speech recognition works right away
  • English, Danish, German, French, Spanish, Japanese, Korean and many more
  • Download a Whisper model in Settings for even higher quality

Fix it on the timeline

  • The video on top, the timeline below: frames, the sound wave and one block per line
  • Drag a line’s edges and they snap to words and pauses
  • Edit words, split a line in two, merge two or add a new one

Make it your style

  • Subtitle, Reel or Classic looks, your own colours and five fonts
  • Word by word highlights the word being said, and Pop makes words appear as they’re spoken
  • Drag the text anywhere on the video, and a guide keeps it clear of the buttons in short-video apps

Save and share

  • Save to Photos or share straight away – the whole video, one line as a clip, or a still
  • Export the subtitles as .srt, .vtt or plain text
  • Original, 9:16, 1:1, 4:5 and 16:9, with a blurred fill instead of black bars

Your video is yours

The speech is transcribed and the subtitles are burned in on your phone. The video and its sound are never sent anywhere. No account, no ads, no tracking.

A small price, made to last.

Free apps come and go. Undertekst is a one-time purchase – a small price that keeps it going: every future update, and support straight from the person who made it. No subscription and no ads.

Get it

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