I didn't know about this before.Well, Microsoft paid Instagram to develop an app for WP.
Nah don't even ask Instagram, they don't answer. Get 6tag and let go. That's the best advice I can give. And it's not even to make publicity for 6tag it's just that it's the only good/updated app available. I'm starting to believe Microsoft (or Nokia then) paid off Instagram to make one app and then the money didn't keep coming so the updates didn't keep coming.
My only hope, that came with learning that Rudy Hyun was behind the official Dropbox app, is that Instagram is smart enough to get him to make the official app.
Microsoft indeed paid Instagram to develop that app. And they're not the only company who received money from MS to have their app appear in the WP store.
Yeah but how do you know for sure?
First of all: common sense. And other than that: it has been reported several times.
Yeah I agree with that first one but it's no proof ;-)
I asked cause I've never heard of any official reports.