Calculator & abacus training vs Abacus Lesson
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator & abacus training
Enhance your math skills with calculation drills for abacus and calculator. Customize training sessions for addition, subtraction, multiplication, and division, with advanced options available after purchase. Challenge yourself in a mode where problems increase in difficulty.
- Abacus and calculator training
- Customizable training modes
- Addition, subtraction, multiplication, division
- Progress tracking
- Challenge mode with increasing difficulty
- Up to 5-digit calculations
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This app is calculation drill for calculation training. You can training that Abacus(soroban) & calculator & math ·Training mode You can create the training that fits your level. Purchase before you can create two. After the purchase will be able to create six. Training time is pre-purchase is 50 times, after the purchase will be saved 200 times, You can see their growth condition. Training can be set in the range of below. Kind: addition, the addition subtraction MIX, multiplication, division Number of digits: up to 5 digits (9-digits after purchase) Number of lines: up to 5 lines (15-digits after purchase) Number of Questions: up to 50 questions ・Challenge mode Level goes up and to clear the problem within the 100 s. Since the problem is more and more difficult, let's challenge to your limits.
Abacus Lesson
Master mental arithmetic and abacus calculation with this comprehensive app. Learn efficient finger movements and mental math techniques to solve complex problems quickly. Enjoy a customizable and ad-free learning experience with progress tracking.
- Abacus lessons
- Mental arithmetic training
- Finger movement focus
- Customizable abacus color
- Screen orientation options
- Trophy system for goals
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356+735+195, 23×89, 5626÷58, Can you solve each in 5 sec by mental arithmetic? The goal of this app is to learn abacus and solve these problems in mental arithmetic within 5 seconds. All lessons of the abacus lesson series, which have been highly evaluated all over the world, are recorded. The lessons have been reworked in a more polite and easy-to-understand. In addition, we have added unique training methods such as training focusing on finger movements and mental arithmetic training to improve mental arithmetic in order to learn abacus more efficiently. And various improvements have been made. - Either vertical screen or horizontal screen can be selected. - The position and size of the abacus and window can be freely laid out. - No ads. - Added sound variations. Volume control can also be finely set. - The color of the abacus can be set freely. - Earn a trophy by achieving the goal. - Smoother operability by optimizing the app. ◆Support web page https://hirokuma.blog/?p=4427
Screenshots
Verdict
The clearest difference is rating: Abacus Lesson at 4.8 against Calculator & abacus training's 1.0. Abacus Lesson also leads on ads (none vs shown) and update cadence (every 2 days vs every 2 months). Calculator & abacus training's advantage is review sentiment (86% vs 75%). On price, in-app purchases, monetization model 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. Calculator & abacus training sells 1 one-off in-app purchase and Abacus Lesson sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Abacus Lesson holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Abacus Lesson has 99 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 86% of Calculator & abacus training's written reviews are positive against 75% of Abacus Lesson's, so the app with the better star average is not the one people write more warmly about.
Calculator & abacus training ships an update every 2 months, Abacus Lesson every 2 days. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Calculator & abacus training | Abacus Lesson |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.8 (99 ratings) — better |
| Positive reviews | 85.7% of reviews — better | 75.0% of reviews |
| Number of ratings | 1 | 99 — better |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 153 MB |
| Age rating | 4+ | 4+ |
| Developer | kenji kiuchi | Hirokazu Komatsu |
Customer experience
Calculator & abacus training
Abacus Lesson
In-app purchases
Calculator & abacus training
- Remove Ad & All function release$9.99
Abacus Lesson
- Unlock all contents$5.99
Questions
Is Calculator & abacus training free?
Is Abacus Lesson free?
Which has better reviews, Calculator & abacus training or Abacus Lesson?
Do Calculator & abacus training or Abacus Lesson have ads?
Which is updated more often, Calculator & abacus training or Abacus Lesson?
Other comparisons
