SlowMo Video Maker:Slow Impact

This app is a free tool for playing and converting videos in slow motion and fast motion.
It has the following features:

● Slow motion play/convert: 1/8 (0.125x), 1/4 (0.25x), 1/2 (0.5x)
● Fast motion play/convert: 1.5x, 2x
● Partial slow motion/speed-up
● Repeat
● Mirror flip
● Add narration

The narration feature is useful for sports video lessons.