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Slow Fast Slow - Control the Speed of Your Videos

By Studio Neat

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Slow Fast Slow is an app for manipulating the speed of videos you shoot on your iPhone. It works especially well with slo-mo videos. Use the intuitive interactive timeline to slow down or speed up your videos. Additionally, you can add pitch control, as well as clip reversal.

• Import videos from your Photo Library.
• 240 fps videos (iPhone 6 and 6 Plus) can be slowed down to 1/16 speed, which is twice as slow as the built in camera app.
• Pitch Control: Retain the correct audio pitch even when the video is sped up or slowed down.
• Backwards playback.
• Add and remove points to adjust the timeline.
• Export videos in the original ratio or square.
• Requires iOS 8.

What's New in Version 2.2

- Adjacent points now snap to the same vertical position. This makes it easier to have sections of your timeline at a flat, consistent speed.
- When you move a point on the timeline, you can now see the exact speed at that point, and the overall duration of the video.
- Tweaked the speed algorithm.
- Fixed export bugs.
- Redesigned the "Glif Ad," and added the ability to buy a Glif directly in the app with Apple Pay (iPhone 6 and 6 Plus only).

If you are enjoying Slow Fast Slow, we sure would appreciate a review in the App Store! We will never bug you for a review from within the app.

iPhone Screenshots

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Customer Reviews

Fantastic app, I love its simplicity.

I time lapse my drawing videos to share and needed a quick way to super speed them up without having to open far larger applications. This is as near perfect to simplicity as it can get. The only addition I would suggest would be a way to see the actual time on the videos just to see how much time I have shaved off. I have tried all those other free apps and they royally sucked at something as simple as to just slow or speed up videos without sacrificing the quality. Thank you for this fabulous app.

Great app!

The other apps I tried were all bad and kept crashing, or had way too little limited amount of video. But this, this is the best app in all of them. The only thing I wish this should have is backwards audio. If it is possible, I cannot make the backwards audio play.

Otherwise, this is the best app.

There is one bug though. The videos appear black on the "other videos" section. Please fix.

Fantastic and User-Friendly

This app was my saving grace! I tried another app like this and it was a disaster. I couldn't get it todo what it was supposed to, the sound cut out halfway through, it took ages to load and had a huge watermark. After that experience, this app is a dream! It's so easy to use. It makes sense and works quickly. The video I created looked exactly how I wanted it to! 10/10

Slow Fast Slow - Control the Speed of Your Videos
View in iTunes
  • Free
  • Category: Photo & Video
  • Updated:
  • Version: 2.2
  • Size: 26.2 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions: