And gay app that works, and is fast, with push notification would be nice, but I see people using KIK, it's fast messaging. For my who live in Norway. We have a pretty good web based site that have a good layout for desktop, but also a good mobile version on the web. (Gaysir.no) but this is more for the Scandinavian public. But no push notification of course :)
There was a third-party Grindr client, but Grindr shut it down and then refused to release their own client (which seems rather pointless). They could have simply bought the company and released the client as their official app (as LinkedIn did with IN+ Networking).