(1/1, 1/10, 1/100, 1/1000)
*custom function.(display size, Button size, Color, Font, Screen orientation)
*Export by email or SD-card.
Easy to use & understand Stopwatch.
reliable with accuracy Stopwatch.
Stopwatch it Can be custom freely.
Timer convenient to all situations.
Rank in the market in more than 30 countries.
Popular stopwatch and ...