Dual Stopwatch lets you run two stopwatches simultaneously with up to 500 laps per stopwatch. Lap times can then be emailed for record keeping or sharing. Stopwatch runs in the background and continues to run even with the phone locked. There are also two countdown timers built in as well. Works great for racing, sports, cooking, or anything that requires a timer.

Features:
- Records lap time, split, average lap, slowest lap, and fastest lap
- Record up to 500 laps
- Record for up to 24 hours
- Accurate to 1/100th of a second
- Ability to email times
- Lock feature allows to lock all buttons and orientation while timer is running
- Dual countdown timers

http://www.n-motionsoftware.com/programs.html