A long time ago I made an app for Android using the MIT App Inventor. It helped folks enter the ticket lottery for the Broadway production of the hit musical, Hamilton. I called it Hamdroid.
Then the Hamilton team released an official app. I’d recommend using that one instead.
Still, habits are hard to break, so a few people still seem to use the thing. I’ve left it up on the Google Play Store for the time being, and if you want to know more about it, you can see the old version of this page here.