I use one mobile phone for both home and work. I own my own (one man) business and it was reccommend by my accountant to track my phone usage so I could deduct the percent dedicated to work. Easier said than done. I started lookIng into some of the call tracking apps to find one that met this need. While there are plenty, most seem to focus on tracking the contacts' calls for billing purposes. They deal more with individual contacts for shorter time intervals. However, I need a more broad solution. I would like an app that tracks and aggregates call stats based on groups. I would select a group (which I've put all my work contacts into) and it would tell me the total time used for the specified period (a year). I then have it give the same stat for all calls and I can compute my percentage. App descriptions don't always shed light on all the features. Does anyone know of any apps that do this, or something equivalent?