This app is so useful and thorough for tracking migraines, I didnt even mind having to pay the $4.99 after a few days. The only downside for me was that I wasnt able to transfer all of my data to the full version. (Possibly due to a mixup with my apple password.) Surely that is something you should be able to do?
Migraine Tracker about TracknShare LITE, v5.0.1