To rename a Switcher-created video within the app, start by opening the Assets menu by tapping on the blue plus icon. Select My Recordings.
In the upper-right corner, you will see the word Select. Tap on it.
Now, choose which file that you would like to rename.
Once you have a file selected, you will see the option for Rename at the bottom of the window. Tap on Rename.
Give your video a new name. and tap Rename when done. You can return to the videos listing by selecting Video in the top-left of the screen.