暗算トレーニング：高速メンタル計算

2026年10月03日

v3.59
Implemented font size, exit confirmation, a wide range of colors
v3.58
Added new styles: Aurora, Neon, Aura Dark/Light
v3.52
Now you can solve examples step-by-step
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