

IIRC (from others, never installed it) McDonald’s app is also obnoxious, requiring permissions and refusing to run on custom ROMs and rooted devices. It was once used alongside some common banking apps as a metric of “how close to Google Android is this ROM”.









XMPP/Jabber protocol has been used by WhatsApp, and then closed off from the rest of the network. Theoretically, it could be inter-operable.