6tag app has received a new update for Windows phone Devices. The new version is 5.6. The latest update allows users can view, and upload non-square images. Also adds support for non-square images and more.
Upload non-square pictures
View non-square pictures uploaded by other users
Add 3 new filters: Clarendon, Gingham and Moon
Tap and hold your picture to quickly compare with and without filter (on filters page)
Bugfixes and use last Instagram API