the author of this app says:
BlackTrack is an easy to use, fully-automated productivity tool for business professionals. It provides daily, weekly and/or monthly reports of your phone / email / SMS activity with optional notes that help you bill time, recover costs, complete timesheets and update project management.
With BlackTrack, you are in complete control. From your Blackberry, you have the freedom to customize all settings and functions. It provides complete, pop-up free tracking.
Purchasing apps from BlackBerry App World requires a PayPal account. BlackBerry smartphone operating system 4.2.0 or higher.