Logbook pro is the bomb!! It really does keep you up to date with your currency, medical, etc. Great features to find any type of item that you would want to pull up ie: complex time vs. High performance. My friend uses the palm version and he likes it. He sometimes has issues on how his airline does the computing of his time and the way it comes up on his logbook. I recommend it but yes you do have to keep up with it otherwise it defeats the purpose.