- android.permission.INTERNET
- android.permission.ACCESS_NETWORK_STATE
- android.permission.WRITE_INTERNAL_STORAGE
- com.android.vending.BILLING
4/6/2016
Ver 1.2.4
* Fixed hard to touch the numbers.
Ver 1.2.3
* Reduction of authority
Ver 1.2.2
* Fix Security.
Ver 1.2.1
* Improvement performance.
* Add logo.
Ver 1.2
* 200 questions of level more than 999 was added.
* Fix performance.
Ver 1.1
* Supported Android 5.