About this app
An app for parents/mentors to engage with young learners to demonstrate and practice the process of column addition and subtraction. Helps learners to understand the process by swiping the images in the correct order. Develops deeper understanding by using place value counters prior to the abstract numerals. Provides practice of the process by completing the examples and sets reasoning problems through the missing digits challenge.
Latest release
What’s New
Fixes for presentation issues, now portrait only.
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 24, 2026 · 12:17 AM Free
Screenshots
