I have been using it on my Samsung tablet for a few days and it is great.
A few suggestions:
-I often just make a note on my phone or a piece of paper of scores and then enter them later. Therefore, the option to click "Another Score" for the same machine instead of just "Continue" and then having to search for the same machine again would be great.
-The average for each machine would be a great feature.
-I am unable to find some machines in the database (Transformers, Playboy (Bally), Rolling Stones (Stern).