About this app
Let's improve Math ability in your free time! Play and Repeat this practice, your calculation speed will be so much faster. And, get quick wit with training your brain. +Features - Practice addition, subtraction, and multiplication. - The number of digits can be chosen from 1 to 4 digits. - You can set up the number questions from 10, 30, 50, or 100 questions. - The number buttons arrangement is either "top to bottom", or "bottom to top". - Calculation Character mode has standard Numerals system and PLUS, there are Chinese numeral system, Japanese numeral system and English numeral system. Chinese, Japanese and English version will use your brain more and possible to train quick wit.
Latest release
What’s New
This update from Apple will improve the functionality of this app. No new features are included. Improved some functions.
Audience growth
Ratings growth
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
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 26, 2026 · 10:25 PM Free
Screenshots
