microG

AXP.OS - Slim

• not pre-installed, so must be installed as a user app
• cannot be used as system location provider
• see also Slim’s microG comparison

AXP.OS - Pro

• pre-installed*
• it is not functional by default, you have to enable it and enable signature spoofing first
• it can also be disabled
• it cannot request privileged permissions
• several permissions are auto-granted
• some background/battery restrictions are relaxed
• blocked from platform signature permissions (microG is not signed with the high privileged platform key)
• due to the fact it is signed during the build process it can only be updated by a newer version of AXP.OS

*microG in AXP.OS Pro is installed unprivileged, i.e. not installed in system(_ext)/priv-app but in either system/app or system_ext/app depending on the Android version. Installing an app in system/system_ext gives that app more permissions than if it were installed as a user app though.

The implementation itself is handled by extendrom, used by the build automation.