3Seconds is a video diary app. If you choose only 3 seconds every day, you can easily make it. You can combine your daily videos into a life video You can make a special story video by period. You can also record your past videos in your diary If it's hard, leave one of them a week. It becomes the best life video of the moment gathered. You can combine the best moments to create highlights of your life. When you want to write a diary special Want to record important moments in your videos Want to make a travel video Want to make a growing video for your kids