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Slo-Mo (and Fast-Mo) videos on your iPhone.


Control the speed of your iPhone videos
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Super slo-mo on your iPhone.

Slow Fast Slow is a simple iPhone app that allows you to manipulate the speed of videos you shoot on your iPhone using an intuitive and fun interface.
the details
An interactive timeline lets you change the speed of your video.


  • 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