數學技巧：心算訓練

2026年08月25日

v3.48
fixed day streak bug increment
v3.46
Implemented rewarded ads
Project structure redesigned (transition from activities to fragments)
Better performance
Fixed alarm-related bugs
Implemented Rewarded Ads
v3.36
- Fixed some bugs
- Implemented Challenges Alarm Clock
v3.31
- Implemented daily streak notifications
v3.28
- Implemented core analytics
v3.26
- Added Pro version purchase option to unlock all math tricks
- Removed the "Buy Coins" button