The funny thing is that I applied for Y Combinator funding three years ago centered around a Blackberry app version of a similar idea. I figured you could tie

The funny thing is that I applied for Y Combinator funding three years ago centered around a Blackberry app version of a similar idea. I figured you could tie in ads or shopping recommendations based on actual behavior (rather than desired behavior). Unfortunately, I didn't get funding and the idea was too half baked at the time anyway. I ended up shelving it for over two years. I resurrected the idea about 6 months ago when I learned Android development. I even built a very crude prototype. As you pointed out, however, data entry is a real problem. However, if you're willing to stick with it, these types of applications can be very powerful and useful for behavior modification because you get feedback on what you actually do. For example, if you're trying to lose weight or change a bad habit (or start a good habit) the power of actual statistical data is amazing. It's like there is another person watching everything you do that you have to be totally honest with. Just being aware of your routines at this level of precision changes you.