After mashing your project, tap the Save Movie (iOS) or the Save to Gallery (Android) button located at the bottom of the Share Mash page:
This saves your mashed video in the Photos app (iOS) and under the Collections > On this device > 1SE in the Google Photos app for Android Google Pixel devices, or under Movies or Videos > 1SE for other Android phones.
To share it, see How to Share a Mash.


