Slow Fast Slow - Control the Speed of Your Videos for iOS

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Developer’s Description

Operate the motion of your iPhone-directed video footages without a hitch.

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 10.