This is an app for trimming video easily like these 3 steps bellow. -- How to use. -- 1.Tap "Video Camera Icon" to open your camera roll, and select a video you want to trim. 2.You can set the starting/ending time with the slider has 2 thumbs. 3.When you press "save" button, the video will be trimmed and saved to camera roll. -- Tips - Press "Clock Button" to open time picker. Then you can select time detailedly like each 0.01 sec.