android - How does the "Google Play Games" app by Google, Inc avoid requiring permissions? -

this odd me. downloaded google play games app (distributed google, inc.) , shown on device required no special permissions (on device):

this peculiar because using application there quite few things should require permissions. network access, accounts access, etc. also, other apps google, inc. i've checked still require permissions expected...

another oddity looking @ app on play store via computer shows require permission, although access accounts , not other permissions 1 expect:

my question, how possible application not require necessary permissions , how can discrepancy between viewing store on device , through web browser explained?

how possible application not require necessary permissions

it may not doing operations itself. may having third-party perform actions it. example, might use custom signature-level permission have play services framework app things on behalf.

how can discrepancy between viewing store on device , through web browser explained?

conceivably, there multiple apks, differing permissions. @ time of web dialog, have not chosen device, , present worst-case permissions. on device, specific apk known, , present device-specific permissions.

that's guess, though, , have no idea if that's they're doing, or if it's possible play store's multiple-apk support handle different apks different sets of permissions.