This is a stand-alone version because of some users' requirement, same from the free version that already
purchased unlock in app.
free version: https://play.google.com/store/apps/details?id=rikka.appops
If your device is rooted, you can use this app directly.
If your device runs Android 5.0 or 5.1 and not rooted, please do not download, because you are not able to use this app due to the limit of Android.
If not rooted and runs Android 6.0 and above, you can use this app by adb (Android Debug Bridge), but this requires computer connection and a little bit troublesome setup steps, please read the description below before download.
Support non-rooted devices (require Android 6.0+ and adb)
Support Lollipop, Marshmallow, Nougat, and Oreo
Support multi-user and work profile
About non-root usage:
Non-root usage requires another app called Shizuku Manager (https://play.google.com/store/apps/details?id=moe.shizuku.privileged.api&hl=en), the full setup steps are in the description of that app.