I want to get logbook pro but i have a few question. Is the information stored on your hard drive and internet or just hard drive? Are they compatable to APPLE? Can the data for logbook pro or APDAL be used with PDA/phones? The most important is which version should I buy if I'm almost near the end of my CFI career and getting ready to go into the airlines. Is it user friendly in APDAL mode if i wanted to use it for the remaining of my CFI career.