そろばん電卓 〜計算を楽しもう〜 vs Abacus Lesson
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
そろばん電卓 〜計算を楽しもう〜
This app displays the calculation process of a soroban (abacus) for arithmetic operations entered on a calculator. It visually demonstrates how abacus beads move to solve addition, subtraction, multiplication, and division problems. Users can customize calculation order and bead speed.
- Visual abacus calculation display
- Supports addition, subtraction, multiplication, division
- Handles negative number subtraction
- Customizable bead speed
- Customizable multiplication order
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そろばん電卓とは 電卓で入力した計算式をそろばんで計算してくれるアプリです。 そろばんの珠がどう動くか確認できます。 足し算・引き算だけでなく以下の計算もできます。 ・マイナスの計算（足し算・引き算） ・かけ算 ・割り算 さぁ、そろばんの計算を楽しみましょう。 ・オプション - かけ算の計算順 - 珠の弾きスピード --------------------------------------------- ※注意点 割り算 ０またはマイナス計算はできません かけ算 マイナス計算はできません そろばんの珠を動かして計算する機能はありません ------------------------------------------------- twitterにてサポートしています。フォローよろしくお願いします。@nekobatsu_suppo
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.
Screenshots
Verdict
The clearest difference is review sentiment: Abacus Lesson at 100% against そろばん電卓 〜計算を楽しもう〜's 0%. そろばん電卓 〜計算を楽しもう〜's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, update cadence 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. そろばん電卓 〜計算を楽しもう〜 asks for nothing beyond the download.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.
| Parameter | そろばん電卓 〜計算を楽しもう〜 | Abacus Lesson |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (8 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 8 — better |
| Update frequency | Monthly | Monthly |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 9 MB | 132 MB |
| Age rating | 4+ | 4+ |
| Developer | suzuki katsuya | Hirokazu Komatsu |
Customer experience
そろばん電卓 〜計算を楽しもう〜
Abacus Lesson
In-app purchases
そろばん電卓 〜計算を楽しもう〜
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 そろばん電卓 〜計算を楽しもう〜 free?
Is Abacus Lesson free?
Do そろばん電卓 〜計算を楽しもう〜 or Abacus Lesson have ads?
Which is updated more often, そろばん電卓 〜計算を楽しもう〜 or Abacus Lesson?
Other comparisons
