Comparison

Cotter AL Abacus vs TT Math 5

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Cotter AL Abacus

This educational tool uses a unique double-sided abacus to teach arithmetic concepts through visualization and quantity recognition. It helps learners develop mental strategies for faster mastery of basic math skills.

Highlights
  • Double-sided abacus design
  • Grouped in fives and tens
  • Focuses on quantity recognition
  • Develops mental math strategies
  • Supports visual learning
  • Includes sample lessons
Features
Currently charting
Read full 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.

About

TT Math 5

This app enhances a math course, allowing students to learn independently and on the go, even offline for up to six lessons. It offers audiovisual lectures, practice problems with instant feedback, and detailed explanations for every problem. Parents can track progress with built-in controls.

Highlights
  • Offline learning for up to 6 lessons
  • 114 audiovisual lectures
  • Thousands of practice problems
  • Automated grading and instant feedback
  • Step-by-step audiovisual explanations
  • Parental progress tracking
  • Digitized textbook with search
Read full description

The Teaching Textbooks Math 5 app makes your TT course even better! Not only will your student enjoy math while learning independently, but, with the app, that learning can also take place on the go. Even when offline! Specifically, the app can be used offline for up to 6 lessons at a time. That makes it perfect for homeschool parents who need their kids to stay productive while the family is out and about during the day. The app’s other features include… • 114 audiovisual lectures that teach every core concept in the standard 5th grade curriculum • thousands of problems that give students all the practice they need to master each concept • automated grading and instant feedback for every single problem • step-by-step audiovisual explanations to every single problem so students can see exactly what they did wrong when mistakes are made (This makes the program feel as if a tutor is at the student’s side!) • parental controls that let you track your student’s progress • the digitized version of the printed Teaching Textbooks Math 5 textbook (with a search feature and a hyper-linked index) • no advertising or in-app purchase offers • Internet connectivity is required, but you can remain offline for up to 6 lessons.

Screenshots

Cotter AL Abacus4 screens
TT Math 54 screens

Verdict

The call

The clearest difference is price: TT Math 5 at Free against Cotter AL Abacus's $1.99. TT Math 5 also leads on update cadence (every 2 months vs every 9 months) and ratings volume (162 vs 6). Cotter AL Abacus's advantage is rating (3.5 vs 3.3) and chart position (#175 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

TT Math 5 is free to download; Cotter AL Abacus costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Cotter AL Abacus holds the better App Store score, 3.5 against 3.3. That said, the two scores are not equally well evidenced: TT Math 5 has 162 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 47% of Cotter AL Abacus's written reviews are positive against 60% of TT Math 5's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Cotter AL Abacus ships an update every 9 months, TT Math 5 every 2 months. The most recent releases landed on October 12, 2026 and October 23, 2026 respectively.

Scorecard7 real differences · 4 level
Cotter AL Abacus versus TT Math 5: the parameters behind the verdict, then further details
ParameterCotter AL AbacusTT Math 5
Price$1.99Free — better
Rating3.5 (6 ratings) — better3.3 (162 ratings)
Positive reviews47.1% of reviews59.7% of reviews — better
Number of ratings6162 — better
Update frequencyEvery 9 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#175 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS13.012.0 — better
Further details — not scored
Size76 MB117 MB
Age rating4+4+
DeveloperActivities for Learning inc.Teaching Textbooks, Inc.

Customer experience

Cotter AL Abacus

All ratings6 ratings
Positive50.0%
Neutral16.7%
Negative33.3%
Written reviews17 reviews
Positive47.1%
Neutral5.9%
Negative47.1%

TT Math 5

All ratings128 ratings
Positive51.6%
Neutral10.2%
Negative38.3%
Written reviews62 reviews
Positive59.7%
Neutral11.3%
Negative29.0%

Bugs and requests

Cotter AL Abacus

Not enough reviews yet to summarise bugs or requests.

TT Math 5

Reported bugs

44 issues
  • App freezes and glitches when giving hints
  • Touch screen not registering numbers
  • App freezes up
  • App is very laggy
  • Sometimes kicks me out of the app
Show 39 more
  • Error code A-4 preventing app from opening
  • Cannot paste
  • Carrying makes you put the second digit in first
  • Typing digits the opposite way
  • App counts correct answers wrong
  • App glitches
  • Issues with loading lessons
  • App won't load a lesson
  • App not working at all
  • Syncing info issues
  • Password was wrong when it was right
  • Lectures are very confusing
  • Lost progress
  • Custom keyboard is difficult to use
  • Buttons don't work
  • App boots me out frequently
  • App is constantly freezing
  • Bluetooth keyboard not working on the app
  • Won't let me go into one of the lessons
  • Reviewing things done in 2nd grade
  • Stickers are freaky
  • Hard to access stickers
  • Audio is outdated and hard to hear
  • Doesn't let me past quiz 2
  • When I type a answer it doesn’t let me type it correctly
  • App glitches out and kicks me off
  • Don't explain it good
  • Issues with loading lessons on iPad
  • Won't let us use the Bluetooth keyboard
  • Won't let me go into one of the lessons
  • Syncing info issues
  • Missed one day of math
  • Stickers are really freaky
  • Very hard to access my stickers
  • Said my password was wrong when i knew it was right
  • Lectures are very confusing
  • Keep on loosing my progress
  • Lost all progress once
  • Custom keyboard is quite difficult to use

Requested features

12 requests
  • Add a redo button
  • Add sound effects to stickers
  • More problems on each particular math subject
  • Focus practice problems on new lessons first
  • Improve review of concepts like Roman Numerals and time
Show 7 more
  • Option to use standard keyboard
  • Fix issues with Bluetooth keyboard
  • Allow access to website version if app freezes
  • Add cool congratulations at the end of a grade
  • Make stickers less freaky
  • Improve audio quality and clarity
  • Treat older students appropriately

In-app purchases

None

Cotter AL Abacus

No in-app purchases

None

TT Math 5

No in-app purchases

Questions

Is Cotter AL Abacus free?
Cotter AL Abacus costs $1.99, with no in-app purchases.
Is TT Math 5 free?
TT Math 5 is free to download, with no in-app purchases.
Which has better reviews, Cotter AL Abacus or TT Math 5?
Cotter AL Abacus is rated higher. Cotter AL Abacus averages 3.5 out of 5 from 6 ratings, while TT Math 5 averages 3.3 from 162 ratings.
Do Cotter AL Abacus or TT Math 5 have ads?
Neither Cotter AL Abacus nor TT Math 5 shows ads.
Which is updated more often, Cotter AL Abacus or TT Math 5?
Cotter AL Abacus ships an update every 9 months, and TT Math 5 every 2 months. Most recently, Cotter AL Abacus was updated on October 12, 2026 and TT Math 5 on October 23, 2026.

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