Video Speed Editor - VBooster

Video Speed Editor - VBooster

Video speed changer

145 ratings
44 reviews
Free
With Ads

Details

  • Released
  • Updated
  • December 15, 2015
  • June 25, 2026
Video Speed Editor - VBooster screenshot #1 for iPhone
Video Speed Editor - VBooster screenshot #2 for iPhone
Video Speed Editor - VBooster screenshot #3 for iPhone
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Video Speed Editor - VBooster screenshot #5 for iPhone
Video Speed Editor - VBooster screenshot #6 for iPhone
Video Speed Editor - VBooster screenshot #7 for iPhone
Video Speed Editor - VBooster screenshot #8 for iPhone
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About

Easily adjust the playback speed of your videos, from slow-motion to fast-forward. Add background music and choose how it syncs with your video's speed. Offers options for precise control over specific sections of your video.

Adjust video playback speed (x0.1 to x10.0)
Choose from 3 sound pitch types
Add background music
Sync music speed with video
Change speed for specific time ranges
Overwrite time ranges
Set frame rate
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What's New in Video Speed Editor

4.83

June 25, 2026

Thank you for using our service. - Fixed minor bugs.

User reviews

エラーが発生しました。動画を書き出せませんでした。

・シンプルモード
・別で保存した動画
・1.15倍速
・音程を維持しない

に設定を変更。

iOSは最新で、再インストールもダメでした。
アプリ内であればとても快適なのですが、そもそも書き出せないんじゃあなぁ……

というか、全部デフォルトでも書き出せないんだけど、なにこのアプリひどすぎ

Response from developer

こんにちは。アプリを利用いただきありがとうございます。 「別で保存した動画」は、別のアプリで保存した動画だと思われますが、該当のアプリ名を教えていただけますでしょうか?

Sam

Radmacher

As good as revmov

Revmov is their video reverser app and it works this also does exactly what it says it does, good app.

ビデオの容量

音ズレしている動画を直すために使っているのですが、容量が元々24.4MBの動画が185MBになっちゃいます。オリジナル品質で保存できるモード的なものを追加して欲しいです

なかなか良き

スローで再生そして動画を気に入った場面で止めて画像保存出来る
ただ、拡大して見る事が出来ればパーフェクト💯

Response from developer

こんにちは、アプリをご利用いただきありがとうございます。 シンプルモードの✂️ハサミの隣にある四角いアイコンを押すと、拡大して見るに近い効果を得ることができると思いますので、ぜひお試しくださいませ。 今後ともどうぞよろしくお願いします。

Developer apps

FAQ

What does VBooster do?

VBooster allows you to change the playback speed of your videos, from very slow to very fast. You can also add background music and control how its speed relates to your video. The app offers two main modes: Simple Mode for the entire video and Time Range Mode for specific sections.

How can I change the speed of my video?

In Simple Mode, you can adjust the playback speed of the entire video from x0.1 to x10.0 in 0.1 increments. In Time Range Mode, you can select specific sections of your video and set different playback speeds for each.

Can I add music to my videos?

Yes, you can add songs as background music to your videos. You have the option to either match the music's speed to the video's speed or keep the music at its original speed.

Is VBooster free to use?

The application is free to download and use, but it does contain advertisements. There may also be in-app purchases available for additional features or to remove ads.

What are the sound pitch options?

You can choose from three sound pitch types when changing video speed: changing pitch by speed, keeping pitch type A, or keeping pitch type B. The best option depends on the original sound of your video, so it's recommended to try both A and B to see which sounds better.