ver 1.15.1590

- Fixed a bug that abnormal traffic was recorded on Android 5

- Fixed crash problem when tapping widget update button on Android 4

- Other, minor fixes

ver 1.15.1573

- Optimize app launch processing

- Add widget background color change function

- Fixed a bug that premium points were consumed several points per day

- Added exclusion function of mobile traffic volume of app (beta)

- Other, minor fixes