About this app
简单加减乘除算术题 计时、计数多种测试模式 在快乐中学习知识，开发智力
Latest release
What’s New
Version 2.57
Sep 23, 2020
针对新系统进行优化
Audience growth
Ratings growth
7-day gain
+0
Ratings / day
0.0
30-day gain
+0
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
Current
Free
Historical low
Free
Paid → free
0×
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 28, 2026 · 12:09 PM Free
Screenshots
