Instagram is finally arriving on Windows Phone, filling a gaping hole in Microsoft's mobile OS ecosystem. The app became available at 11 a.m. PST/7 p.m. GMT/6 a.m November 21 AEST in the Windows Phone Store, TechRadar said.

The Instagram app is a welcome if overdue addition to the platform, one users have been clamoring for as iOS and Android owners have snapped and filtered to their Hudson hearts' content. Nokia too put the vice on Instagram, perpetually deflecting that an app would come to its Lumia line, eventually, according to TechRadar.

That day is now upon Windows Phone owners, however the Instagram app they're about to enjoy is still very much a work in progress. To stress the point, it's called Instagram BETA in the Windows Phone Store.

According to the Facebook-owned company, it wanted to get the app on WP as quickly as possible (quickness being relative), and therefore only endowed it with core features to start. More functions will arrive with future updates, the company assured.

Instagram is only available for Windows Phone 8, meaning owners of non-upgraded phones are out of luck.