Cotter AL Abacus

Name: Cotter AL Abacus
Price: 1.99 USD
Rating: 3.5 (6 reviews)
Author: Activities for Learning inc.

By: Activities for Learning inc.

Education

Features & Capabilities

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.

User Growth & Download Statistics

App

By:

Activities for Learning inc.

Rating:

3.50

(6)

Version:

1.93 Last updated: 2025-12-22

Version code:

877581233

Creation date:

2010-12-15

Compatible devices:

Size:

76.38MB

Price:

1.99

URLs:

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-03

Compare stats and ranking:

Ranking

# 527,925 ▼ 5,533

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Contact the developer

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Developed by:

Activities for Learning inc.

Apple Apps Store

https://apps.apple.com/us/app/cotter-al-abacus/id406078581

User Reviews

You can’t move the beads to alternate spacing to show adding as demonstrated in the right start math book. The beads only go to the far left and far right. We were trying to use the app to get us through lessons while we search for our missing abacus, but this is not a great substitute.

by Ma*****, 2024-11-14

I downloaded this app so that two of my children could do their Right Start math lessons at the same time and so far it has worked perfectly. I have a new iPad and the app works beautifully with no delays or issues.

by Cj*****, 2021-08-13

I wouldn't complain if it was free. But I spent $2 on it and I'm going to have to just buy a physical abacus. I thought the app would get us through the rest of the week until I could search for the lost abacus this weekend. This is terrible, it takes for! Ever! For it to recognize your finger, so doing a whole math lesson takes impossibly long. We spent two days doing a lesson that should have taken half a lesson time. So much wasted time. I should have just pulled out some counting beans or Legos or something instead.