How should I monetize this app?
pip2010: I think your 3 option would be the best way to go, thats a great way to add a added payable version for - especially if you could add somekind of analytics to the time spent - in general and perhaps in relationship to other users (lets you see how you rate to others (all/friends), or might come with suggestions how to optimize your productivity). So your local version would save data and show you them there, but the storage of data and analytics would be on the website. Fantastic visualizations of the data will probably be a great way to build fans of the app - allowing a user to very easily understand their productivity level...This would also allow a company to test it across all its staff, to see how time is used - of course this is a little big brother'ish, but might be a added value option to sell.-PiP