Tally Counter by button press

Press the volume button to count up.
Not only UI, but you can push it properly.
A counter you can push.
~~ Features
Can be operated without looking at the screen.
- The volume buttons can be used, eliminating the need to operate the screen.
- Ideal for "while operating" with binoculars, microscopes, etc.
Up to three counters can be placed on the screen.
- Count 1
　　Count with the volume up button.
- Count 2
　　Count with the volume down button.
- Count 3
　　Count with the buttons on the screen.
- It is also possible to set only one counter on the full screen.
　　You can count by tapping almost anywhere on the entire screen.
　　Counting by screen operation is disabled! Volume buttons only! The count is retained even after the app is closed.
Counts are retained even after the app is closed.
- No problem even if you kill the app.
Counting can be started from the middle.
- You can start from 100, 1000, and so on.
Sparkling animation is displayed when counting.
- The added counter is easy to understand.
- It is also possible to set the terminal to lightly vibration.
Count reset
- Reset all counters, or reset each counter individually.

Please enjoy this simple and easy-to-use counter application.