Main-Sub Timer is a timer which measures sub timers (three types of sub timers: timer,interval,stopwatch) in main timer. for example in main 60 minutes timer , you can measure sub timers (for example, 10 minute,10 minute,20 minute,20 minute). you can measure main and sub timers conveniently in all-in-one interface.
June 27, 2013
500 - 1,000
2.1 and up
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