Delete a canvas app
This article shows you how to delete a canvas app.
Delete an app as the owner
Sign in to Power Apps.
Select Apps from the left pane.
(optional) Near the upper-right corner, filter the list of apps to show only those apps that you own.
If the app that you want to delete doesn't appear, make sure that you're in the right environment.
Select an app.
Select Delete from the top menu. You can also select More Commands (..) and then select Delete instead.
Select Delete from cloud.
This action deletes the app not only from your account but also from the accounts of all users with whom this app was shared.
Delete an app as the administrator
If owner of an app is unavailable, an administrator such as Global admin, Azure Active Directory Global admin, or Dynamics 365 admin can set the owner of an app. And then, the new owner can delete the app.
To set a user as the owner of an app, use the Power Apps cmdlets for administrators.