i bought logbook pro and recommend it to anyone. its a bi&$* to enter all of your time but once you do its great. itll keep currency, split up time in type, time in 6mos, 1 year, 6 week, ect. itll split up time such as where you flew a certain aircraft. for sending out apps i scrubbed my logbook and put everything in logbook pro. some apps ask for weird stuff like time in certain types of aircraft and such. i have the pc download version. its a great investment.