Cotter AL Abacus

Developer: Activities for Learning

Category: Education

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300 installs

6.00 ratings

10 monthly active users

Revenue not available

Cotter AL Abacus Summary

Cotter AL Abacus is a mobile iOS app in Education by Activities for Learning inc.. Released in Dec 2010 (15 years ago). It has 6.00 ratings with a 3.50★ (average) average. Based on AppGoblin estimates, it reaches roughly 10 monthly active users . Store metadata: updated Dec 22, 2025.

Store info: Last updated on App Store on Dec 22, 2025 .

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App Details

Store ID: 406078581

First Released: 2010-12-15

Store Last Updated: 2025-12-22

In-App Purchases: No

Ads: No

Website: rightstartmath.com

App Store

Crawl Status: Success

AppGoblin First Crawled: 2021-02-06

AppGoblin Last Crawled: 2026-02-28

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App does not have ads.

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3.5★

Ratings: 6.00

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Screenshots

App Description

Cotter AL Abacus, used with the RightStart™ Mathematics program, now available on your iPhone and iPad! This abacus will teach, not calculate like the Japanese and Chinese abacus, while using subitizing (quantity recognition) and visual strategies to support learning and understanding. Perfect for visual learners!

This unique double-sided abacus is grouped in fives and tens for quick recognition of quantities. The second side of the abacus focuses on trading to the thousands.
Learn the facts easily by:
* visualizing quantities,
* minimizing counting, and
* developing mental strategies.

Those learning arithmetic with the Cotter AL Abacus have a better understanding of basic concepts and need less time to master arithmetic. Although children do enjoy using the abacus, it does not become a crutch. Stan, age 5, was asked how much is 11 plus 6. He replied, “17!” When he was asked how he knew, he replied with a grin, “I’ve got the abacus in my mind.”

App has links to sample addition, subtraction, multiplication, and division lessons as well as detailed use information.