This is so sweet. My mom got it for me for Christmas. Before I had an Instax Camera that I loved using, but had trouble carrying it around (it's clunky). Sprocket lets me print any photo post-taking the digital picture, and doesn't use any ink!! Whatttt?? And you can add text / emoji / whatever fun things to the picture just before printing.
Went to a Christmas dinner last night, took a group shot, added "Xmas 2016" to it, put a filter on it (all from Sprocket app), and gave our hosts the picture. Awesome experience so far.