提供一种快速计算数字的方法，例如学生人数。
With this free upgrade, there are all the features users have asked for
-Sound on Tap
-Never Lose a count with Memory button
Keeping track of something/someone in large quantities is a breeze with this app, since you do not have to remember which number you are on.
The following uses of an audio counter include: making a guestlist, counting large amounts of money/change, gathering sample numbers for experiments/surveys, listening for frequency of speech (for correction of speech impediments), counting votes, or counting heads at a gathering.
The counter allows you to keep track of counts forward or backward, and you can start over from zero if you need to.
By tapping anywhere on the screen, this counter increases (or decreases).
Features:
* Increment and decrement counter value.
* Counter will be saved for the next time.
* Reset the counter to start over again.
* Lock the screen to pause the counter.
* Brightness settings available, you can decrease the phone brightness to save your phone's battery while counting.