There is not any 'Application Permissions' required at all for this clean app to run.
It is a demo of Android apps that require NO 'Application Permissions'.
The screenshots -
You can download the setup package ( .apk file, 722 KB, i.e. 0.7 MB ) directly from Google Drive -
The handy utility app is also available on Amazon Appstore -
* The setup package, .apk file, as well as screenshots for this smartphone application are full-free for downloading and distributing.