In the following, I have collected 10 best slow motion video apps for Android/iPhone. You may be not appealed to the concept, but if you have ever watched a great slow motion video on YouTube, or customize a video with help of a slow motion video editor, you would understand how simple but funny and useful it can be, and there will be no need to explain why I want to introduce to you the best slow motion video app for Android/iPhone. Slow motion video, generally speaking, is a video recorded at a higher-than-normal frame rate, then playing it back at a regular speed. 10 Best Slow Motion Video Apps to Make Slo-Mo Video on Android and iOS Device