For the past few weeks, I have been revitalizing my old Playpen Ballroom calculator. The apps objective was to help users find out just how many playpen balls could fit inside their room. While I still have a few minor kinks to work out, the Alpha is now available for download. To join the test you can either become a tester on the Google Play Store or get the code off of Github and compile it yourself. Feedback and pull requests are always welcome!