This article shows you how to restore an app to a previous version that was saved to the cloud from your PowerApps account.
Open powerapps.com, and then click or tap Apps in the left navigation bar.
(optional) Near the upper-left corner, filter the list of apps to show only those apps that you own or only those apps to which you contribute.
Note: If the app that you want to restore doesn't appear, make sure that you're in the right environment.
Near the right edge, click or tap the info icon for the app that you want to restore.
Click or tap the Versions tab, and then click or tap Restore for the version that you want to restore.
In the confirmation dialog box, click or tap Restore.
A new version is added to your list.