abacus shapes vs Abacus Lesson
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
abacus shapes
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You can do exercises of following calculations. Addition, Subtraction, Multiplication, Division, Flash addition, practice of abacus. This app is good for children, children can learn the basics of mathematics or A.I. technology. And It's also good for adults' reeducation too. Adults can brush up there calculation ability or it's useful for prevention of dementia or alzheimer's diseases. Furthermore, you can see some of basic principles of math with intuitive solid shapes. This will promote your understanding of math. And this app serves as toys that won't make your room messy. It is said that the chimpanzee are smarter than humans in terms of short-term memories. Humans short-term memories have degenerated, as ability of language has developed. Young children who are not totally dependent on language may be able to exercise chimps-like ability. In this app, a memorization method using language is proposed to retain short term memories, but it's not as quick as visual memorization method. What do you think of it? Mathematics isn't powerless. Maths is the basics of chemistry and biology and medical science. Computer is a product of maths, chemistry, and physics. You can use computer to make people immortal someday. Using sensors and cameras to monitor the body, detecting some problems, and cure them. There are some promising medical technologies like Gene therapy, iPS cells and so on. I hope someday humanity will conquer every diseases and death. If people conquer death, then things like sorrow, anxiety, sadness will go away. Please tell children to use this app, and let them achieve this goal. File saving function has been added. You can copy, edit, or rename csv file with PC. Now, you can add your own PNG images to this abacus. Please design your unique images of numbers like examples. To do so, you need to tap the Files icon of iOS and the folder of abacus game. Duplicate the data_5.csv file and PNG_5 folder, rename them like data_8.csv and PNG_8. Then register another number and string you want to add to the data_8.csv file and put another PNG images corresponding to the number you've registered into the PNG_8 folder. Check the brain icon in the setting page of how to read numbers. You can see these images in the process of calculation of abacus. You can share your way of reading numbers with your children, friends, and the world. Your intelligence and wisdom would be helpful to the people in the world. Please enjoy calculation with abacus.
Abacus Lesson
Learn the simple and fast method of division using an abacus. This app focuses on developing mental calculation skills by leveraging the abacus technique. It's recommended to master addition, subtraction, and multiplication with an abacus first.
- Learn abacus division techniques
- Develop mental calculation skills
- Focus on Soroban method
- Step-by-step division instruction
- Builds on addition, subtraction, multiplication
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An abacus is named "Soroban" in Japan. Do you know what an abacus is? The abacus is very simple calculator used in China, Japan, Korea and so on. Some people may say "Isn't it an unnecessary tool if you have a calculator such as a smartphone?". Answer would be "No". The biggest difference between electric calculators and the abacus is whether you need to hold it in your hand when calculating. Because of its simplicity, you will be able to easily use the abacus in your mind. In the app, we will explain simple and fast method of the division using the abacus. To learn division, it is essential to be able to add, sub, and multiplication with an abacus. If you are new to them, we recommend that you learn addition subtraction multiplication with the app in my app list first. This app will give you the skill of calculation of division.
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Verdict
The clearest difference is in-app purchases: abacus shapes at none against Abacus Lesson's 3. On price, update cadence, ads and device support 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
Both are free to download. Abacus Lesson sells 3 one-off in-app purchases. abacus shapes asks for nothing beyond the download.
abacus shapes ships an update every 6 weeks, Abacus Lesson monthly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.
| Parameter | abacus shapes | Abacus Lesson |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (8 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 8 — better |
| Update frequency | Every 6 weeks | Monthly — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 90 MB | 132 MB |
| Age rating | 4+ | 4+ |
| Developer | taijun sawano | Hirokazu Komatsu |
In-app purchases
abacus shapes
No in-app purchases
Abacus Lesson
- Donation Lv1 for hiding Ad$1.99
- Donation Lv2 for hiding Ad$3.99
- Donation Lv3 for hiding Ad$8.99
Questions
Is abacus shapes free?
Is Abacus Lesson free?
Do abacus shapes or Abacus Lesson have ads?
Which is updated more often, abacus shapes or Abacus Lesson?
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