You might not want to rush to try the test release. As the alpha status implies, this is a very rough-around-the-edges app with missing controls (including access to Snapcodes on profiles) and buggy behavior. The camera app still captures screenshots rather than direct photos, for that matter. If you were hoping for pictures that rivaled what iPhone-based users get, you’ll be disappointed.
More importantly, you’d have to get root access on your phone just to check out the Snapchat alpha. That’s not much trouble if you’re a diehard enthusiast who knows ADB like the back of their hand, but it’s not available to every Android user and probably isn’t worth the hassle if you want Snapchat’s full functionality. Consider this a peek at Snapchat’s future improvements rather than an early release.