Timescanner is the only Time Tracker that calculates your time worked from your calendar events, rather than from starting a timer. Reduce the number of tools you use and benefit from all the native features of your calendar (search, colors, locations, bulk editing...). Using recurring events, you can also get predictive estimates of the time you'll spend on a client or project months in advance. Set your hourly rate for each project to know in seconds what to invoice your clients.