Slow Fast Slow is a new app for recording short videos that allows users to record at high frame rates (120fps on iPhone 5s, 60fps on iPhone 5, 5c, and iPod Touch 5th Gen). Users can also change up the speed of the recording, slowing it down to 1/8th the regular speed, along with changing up the audio pitch.
Time to record!
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Source:
http://www.148apps.com/news/slow-fast-slow-lets-users-record-video-high-frame-rates-adjust-recording-speed-audio-pitch/