Here's the link!
https://steemit.com/steemit/@steepshot/announcement-steepshot-ex-steemstagram-android-alpha-test-version

I really like the concept, though I found out it's just a Steemit App which,rather than showing the post, it shows just the image.. Was slightly disappointed since I expected a seperate platform purely about photos which was hooked onto Steemit.