I have used PinPal since January 2014 and it's great. You can track the centres you've bowled in, what patterns you've played on, balls used. League and tournament play. It breaks down everything. Can use it as a self coaching tool because you can look back at what pins you're leaving, what spares you need work etc.
There is a lite version that you can try for free and I think the full version is only approx $10.