Alongside acting as a platform for granting licenses, a EULA is also super valuable in protecting your right to revoke licenses. This is because the EULA can include a clause stating that you, as the vendor, have the right to suspend or terminate licenses and associated rights.
This clause is yet another means of preserving full control over your app, whilst also making users aware that they are not guaranteed unlimited or endless access to your licenses. And, if you should choose to terminate a license at any point, the user will be obliged to stop using the app and remove it from their device.