ten thousand is a simple time tracking app. Improve your estimates by using it to track how long it really takes to write that 5,000-word essay, develop a feature, fix the sink, or whatever task youre taking on next. Better manage your time and reward yourself for every 10 hours you spend learning Objective-C, training for a marathon, or other goals youd like to focus on. The app name draws inspiration from a popular (but unproven) belief that it takes 10,000 hours or more before you can truly master anything.