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RevooGet the App

Reverse audio for iPhone

Say it. Hear it backwards

Record a word, a song or a laugh, and Revoo flips it the moment you stop. Then sing it backwards and see how close you get. No ads, no limits.

Download on the App Store
Revoo Reverse Singing Challenge result with a score of 87 out of 100, Spot on
Revoo selfie dance clip playing backwards, with the Backwards and Original switch
Revoo take with a pink backwards waveform playing, and the Play Backwards and Play Forwards buttons

01 · Features

Everything you say, both ways

One tap to record, instant backwards playback, and a party game built on top of it.

  • TAKE 01

    The Reverse Singing Challenge

    Sing a line, listen to it backwards, copy the backwards sound, then flip your copy and hear the reveal. Revoo scores how close you got out of 100, and you can share the reveal as a video.

    Revoo Reverse Singing Challenge screen with its four steps and line ideas to try
  • TAKE 02

    Reverse anything, free

    Record and play any take forwards or backwards as often as you like, with no ads and no limits. Import songs, voice memos, audio files or the sound of any video.

  • TAKE 03

    Backwards video and voice effects

    Film a selfie clip and watch it play backwards, sound and all. With Revoo Pro, add Robot, Chipmunk, Giant and other effects, change speed and pitch, and loop a take.

02 · How it works

Three steps to hearing yourself backwards

Record it, hear it flipped, then try to sing the backwards version. No account needed.

  1. Step 01

    Record

    Tap Record in the Studio and say a word, sing a line or laugh. Or import a song, a voice memo or the sound of a video.

  2. Step 02

    Hear it backwards

    Revoo flips the take the moment you stop. Tap Play Backwards, or Play Forwards to hear the original again.

  3. Step 03

    Take the challenge

    Copy the backwards sound, flip your copy back with Play the Reveal, and see how close you got.

03 · Inside the app

A closer look at Revoo

  • Two friends laughing on a sofa, one holding a phone like a microphone, under the headline Sing backwards. Laugh forwards.
  • Revoo Reverse Singing Challenge result with a score of 87 out of 100 and Play the Reveal
  • Revoo take playing backwards with a pink waveform, free with no ads and no limits
  • Revoo selfie dance clip playing backwards with its sound
  • Revoo Effects with Giant selected, speed and pitch sliders and Loop
  • Revoo Studio, where recordings stay on the phone and are never uploaded

04 · FAQ

Frequently asked questions

Short answers about pricing, privacy, the challenge and devices.

Is Revoo free?

Yes. Recording, reversing, playing takes both ways, the Reverse Singing Challenge and its reveal video, importing audio and recording a backwards selfie clip are free and unlimited, with no ads. Revoo Pro is an optional subscription that adds voice effects, speed, pitch and loop, the challenge score, reversing videos from Photos and exports without the Revoo mark.

How does the Reverse Singing Challenge work?

Record a short line of a song, listen to it backwards, then record yourself copying the backwards sound. Revoo flips your copy forwards again, so you hear how close it comes to the original. With Revoo Pro you also get a score out of 100.

Can Revoo reverse a song or a video I already have?

Yes. In the Studio, tap Import to bring in audio or video from Files, or the sound of a video in Photos, and Revoo reverses it like a recording. Reversing the picture of a video from Photos, not just its sound, comes with Revoo Pro.

Are my recordings uploaded anywhere?

No. Revoo records, reverses and scores on your device, with no account and no tracking. A take leaves your phone only when you share it.

Which devices does Revoo run on?

Revoo runs on iPhone and iPad with iOS 26 or later, in 12 languages.

Rewind

Hear yourself backwards for free

Download Revoo, record anything, and flip it with one tap. No ads, no limits.

Download on the App Store