I honestly couldn't tell you if this is a good app or a bad app but this point.. for starters I would say I'm not in love with it. That would be because of the simple fact that it does not give you an option to put your exact time in as far as your birthday and all that goes which I highly recommend having an app that does so because this does give a lot more insight into your actual reading. Secondly, the free version gives you very minimal amounts of information.