Step 3: On the next screen, you can have small edit options like adding a filter, changing the speed of the video, and adjust the sliders so that you can edit the length of the video. Step 2: After launching the app, allow the app to have access from your photo library, after which select the VIDEO tab and choose the file which you like to use. The basic version of this app is available for free. Step 1: From the app store, download the intolive app. For this process, first, you have to create a live photo from a video.