OnceMo: A-B Repeat & Record

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Content rating
Everyone
10+
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Everyone
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About this app

Loop the tricky part until you nail it.
A sentence you can't quite catch, a riff your fingers trip over, an eight-count that won't stick. Stop rewinding. OnceMo keeps playing just that part for you.

● Loop exactly the part you need
· Mark a start and an end on the waveform, and only that part plays.
· At the end it jumps straight back to the start, with no gap.
· Pinch to zoom the waveform and adjust in 0.1-second steps.
· Loop it forever, or set a number of repeats and let it stop.
· Add a pause between repeats to say it or play it back.

● Slow it down, keep the pitch
· Go as slow as 0.5x and it still sounds natural.
· Speed it back up when you're ready, all the way to 2x.
· Turn on the countdown and playback starts after 3, 5 or 10 seconds.

● Film yourself practicing
· Hit record while the audio plays.
· Turn the mic off and the original audio goes in clean, without the room noise.
· Stop recording and it's saved right away, to your gallery too.
· Loop and slow down your recordings to see what's off.

● Made for all kinds of practice
· Languages: loop a sentence, write it down, say it back
· Lectures and podcasts: replay just the part you missed
· Instruments: slow down a tricky phrase and learn it by ear
· Singing: drill a hard line with the pitch intact
· Dance: repeat the eight-count you can't get, then check it on video

● Easy to read from across the room
· The waveform, numbers and buttons are big enough to read with your phone a few steps away.

● No sign-up. Stays on your phone.
· No account or login needed.
· Your audio and videos are never uploaded to a server.

● Good to know
· OnceMo doesn't provide or stream music or any other audio. It plays audio files already on your device.
· Available in 16 languages.
Loop the tricky part of any audio until you nail it, then slow it down.
Updated on
Oct 4, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Financial info
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

Once More is now called OnceMo. Your tracks and recordings are still there.

• Stop a recording and it's saved right away. The camera stays open for the next take, and a thumbnail of the latest one appears next to the shutter.
• New recordings also go to your gallery. You can turn this off in Settings.
• The waveform of a newly added track shows up much sooner.
• You can delete a recording from its ⋯ menu again.
Content rating
Everyone
In-App Purchases
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App support

About the developer
파도
pado.wave.dev@gmail.com
마포구 성미산로6길 39, 303호(서교동) 마포구, 서울특별시 03997 South Korea
+82 10-9756-8025