A stand-alone version same from free version that already purchased unlock in app.
free version: https://play.google.com/store/apps/details?id=rikka.appops


Why publish a same stand-alone version again?
Some user requested so here it is.

Features:
Support Lollipop Marshmallow and Nougat even O Developer Perview
Material Design
Support multi-user and work profile

What can this app do?
You can tweak individual app’s permission settings.

About Settings - Implementation:
If you have problem in general mode please try compatibility mode.

For non-rooted users:
If you are using highly customized ROM such as MIUI you may not to able use App Ops because adb shell do not have permission to change settings.

Common questions:
Q: (For Android 6.0+ users) What if I deny a permission in App Ops and allow it at Android Settings at the same time?
A: It will be denied.
Q: I want to change the setting of XXX permission.
A: App Ops takes effect via invoking system services so what it can change depend on your device’s firmware.
Q: Why the changes make to some apps’ permission change to allow after rebooting?
A: The SD card installation of some app may cause It if this is not your case please contact the developer.
Q: (For ADB mode users) Why the resetting of the ADB is needed after reboot?
A: For safety concern Android system will disable ADB via network after reboot.