Chopper: Video Silence Remover

Chopper: Video Silence Remover

AI trims pauses from audio

23 ratings
38 reviews
$1.99

Price history


Details

  • Released
  • Updated
  • April 23, 2021
  • October 1, 2026

Features

Chopper: Video Silence Remover screenshot #1 for iPhone
Chopper: Video Silence Remover screenshot #2 for iPhone
Chopper: Video Silence Remover screenshot #3 for iPhone
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About

This application uses AI to intelligently remove silences from video and audio recordings. It specifically detects human voices, distinguishing them from background noise, and processes everything on your device for enhanced privacy and offline use. Simply select your file and export for a cleaner, more concise recording.

✓AI-based silence removal
✓Human voice detection
✓Offline processing
✓Adjustable cut level
✓Video and audio support
✓Extract audio from video
✓Reduce video file size
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What's New in Chopper

2.6.2

October 1, 2026

• Added Same as Original and 1080p, 720p, and 480p export options. • Fixed a crash when analyzing very long videos. • Imported video copies and exported videos are now cleaned up when switching to another video or launching the app. • Improved file size estimates. • Improved Japanese translations.

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User reviews

Dev responded to my feedback and updated the app!

I’ve been using Chopper for a while now. It wasn’t perfect, but I learned how to make it work for me. It’s a tiny app that does its job. And now with these new features, it’s still a tiny app that does its job even better!

Tips for new users: Don’t do anything after you’ve chosen your video until AFTER it has analyzed the video you chose and presents you with “chopping” options. If you have a video that’s noisy and Chopper isn’t giving you the results you expect, first run your video through a “denoising” app like Noise Clear which is free and works really well. I’d actually love to see Chopper add a “denoising” feature since I “denoise” every video I run through Chopper anyway.

If storage is an issue for you, hard close the app when you’re done. That will free up space. Free up even more space by then opening Chopper and immediately hard closing it again. That’ll bring it all the way back to its original, tiny size. iOS is weird like that.

A+++
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Response from developer

Thank you for reporting this, and sorry for the trouble. Version 2.6.2 changes this: Chopper now deletes its copy of the video you loaded and the exported file it keeps, both when you load the next video and each time the app is launched. So you no longer need to reinstall. If the size still grows on 2.6.2, I'd like to hear about it.

Rarely works

When it works it idea the job well! But rarely work la really!

Response from developer

Thank you for the feedback. Chopper works better in versions 2.6.1 and 2.6.2: silence detection is more accurate, and I fixed problems where silent parts were left uncut and where videos and audio files loaded from the Files app were not processed all the way through. Please give the latest version a try.

そもそも使用できない

30分程度の音声ファイルをアップロードしたらアプリが落ち、何回トライしても同じことが起こる。
使用機種はiphone15なので性能が特別低いわけではない。
全く使えないので買って後悔している。

Response from developer

ご不便をおかけして申し訳ありません。ファイルアプリから読み込んだ動画・音声で、読み込みのあと解析が終わるところでアプリが終了する不具合があり、バージョン2.6.1で修正しました。音声ファイルはファイルアプリから読み込むため、ご報告の症状はこの不具合によるものだった可能性が高いと考えています。お手元のファイルで直ったかまでは確認できていないため、最新版でもう一度お試しいただけますと幸いです。

使えません

全然使えない

Response from developer

バージョン2.6.1と2.6.2で、無音部分の検出の精度が上がり、より安定して動くようになりました。無音部分がカットされずに残る問題や、ファイルアプリから読み込んだ動画・音声を最後まで処理できない問題を修正しています。最新版でもう一度お試しいただけますと幸いです。

Stored Data Does Not Clear…

I have to uninstall and reinstall constantly because the data that should be temporary doesn’t clean up and the size of this app permanently balloons to multiple GBs.

Developer apps

FAQ

What does Chopper do?

Chopper is an application that automatically removes silences from video and audio files. It utilizes AI-powered deep learning technology to specifically identify and cut out pauses where human voices are not present, distinguishing them from background noise.

How does the AI silence removal work?

Unlike traditional silence cutters that rely on audio levels, this app's AI focuses on detecting human voices. This allows it to accurately remove unnecessary parts of recordings, such as rustling or ambient noise, while preserving spoken content.

Is this app free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned, suggesting a completely free user experience.

Can I use this app offline?

Absolutely. All processing is performed directly on your iPhone or iPad, meaning you can use the app offline without an internet connection. This also ensures your data remains private as nothing is sent to a server.

What kind of files can I use with Chopper?

The app supports both video and audio files. You can also extract the audio track from your video files, and choose different export qualities, including an option for 'Medium Quality' to reduce the overall video file size.