Features:
Support Lollipop Marshmallow Nougat and O Developer Preview
Material Design
Support multi-user and work profile
Support non-rooted devices (require Android 6.0+ and adb)

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