Abacus Lesson vs Abaculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Abaculator
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Abaculator can be used as a calculator or an abacus. You can do addition, subtraction, multiplication and division with abaculator. Simple tutorials are available for you to learn abacus. And you can switch between 3 languages. The bead movement speed can also be adjusted.
Screenshots
Verdict
The clearest difference is in-app purchases: Abaculator at none against Abacus Lesson's 3. Abaculator also leads on ads (none vs shown). Abacus Lesson's advantage is update cadence (monthly vs every 35 months) and iOS requirement (11.0 vs 15.6). On price 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. Abaculator asks for nothing beyond the download.
Abacus Lesson ships an update monthly, Abaculator every 35 months. The most recent releases landed on September 21, 2026 and September 9, 2026 respectively.
| Parameter | Abacus Lesson | Abaculator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Monthly — better | Every 35 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 132 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Hirokazu Komatsu | Chi-Cheng Liao |
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
Abaculator
No in-app purchases
