1.5
Update internal library.
1.4
Update billing library.
1.3
Internal system update.
v1.2.5
Support 64bit.
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 puzzles of level more than 999 was added.
* Fix performance.
Ver 1.1
* Supported Android 5.
1.4
Update billing library.
1.3
Internal system update.
v1.2.5
Support 64bit.
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 puzzles of level more than 999 was added.
* Fix performance.
Ver 1.1
* Supported Android 5.
Ver 1.2.4* Fixed hard to touch the numbers.Ver 1.2.3* Reduction of authorityVer 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.