Ehh

Great app except for the fact that you have to do everything in one sitting. If you have multiple videos to do you cant close this app and come back to it because once you do, it crashes. So what you have to do whenever you want to use it is uninstall it and then reinstall it. Its a hassle. I hope theyll update this.

RoseBankai about iSlowFast - Timelapse and Slow Motion Videos Editor, v1.0.1