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.