# Abacus Lesson vs Abacus Mental Math Training

The clearest difference is review sentiment: Abacus Lesson at 93% against Abacus Mental Math Training's 20%. Abacus Lesson also leads on rating (4.9 vs 4.1) and ratings volume (836 vs 31). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Abacus Lesson sells 3 one-off in-app purchases and Abacus Mental Math Training 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, 4.9 against 4.1. That said, the two scores are not equally well evidenced: Abacus Lesson has 836 ratings behind it against 31, so its average is the more settled of the two. Written reviews point the same way: 93% of Abacus Lesson's written reviews are positive against 20% of Abacus Mental Math Training's.

Abacus Lesson ships an update every 3 weeks, Abacus Mental Math Training monthly. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Abacus Lesson | Abacus Mental Math Training |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (836 ratings)](https://appshunter.io/ios/app/abacus-lesson-add-and-sub/id1526785916/reviews)** | [4.1 (31 ratings)](https://appshunter.io/ios/app/abacus-mental-math-training/id6449295111/reviews) |
| Number of ratings | **836** | 31 |
| Positive reviews | **93.1% of reviews** | 20.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 138 MB | 34 MB |
| Requires iOS | 11.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hirokazu Komatsu](https://appshunter.io/developer/1523833531) | [Peikun Duan](https://appshunter.io/developer/1240254007) |

## What reviewers say

### Abacus Lesson

[App page](https://appshunter.io/ios/app/abacus-lesson-add-and-sub/id1526785916)

Learn addition and subtraction using a virtual abacus, also known as a Soroban. This app helps you develop mental calculation skills, enabling you to perform calculations without physical tools.

**Highlights:** Learn addition, Learn subtraction, Virtual abacus (Soroban), Develop mental calculation skills, Perform calculations without physical tools

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donation Lv1 for hiding Ad | $1.99 | one-time |
| Donation Lv2 for hiding Ad | $3.99 | one-time |
| Donation Lv3 for hiding Ad | $8.99 | one-time |

**What reviewers like**

- 👍 Beginner-friendly and easy to use
- 🚀 Quick to learn basic concepts
- 📚 Clear and simple explanations
- 🎯 Effective teaching methodology
- 💰 Free with no ads

**What reviewers complain about**

- 🌐 Poor English translation quality
- 📖 Lessons sometimes hard to read
- ❌ Cannot skip levels
- ⚡ Difficulty progression too steep
- 🐛 App closes accidentally on iPhone when swiping

**Reported bugs**

- Accidental app closure on iPhone during bead swiping
- Error in lesson 3 addition summary
- Sloppy English translation causing confusion
- Lessons difficult to read visually

**Requested features**

- Add Chinese Abacus (Suanpan) option
- Landscape view support
- Level skip functionality
- Better English translation/editing
- Clearer problem presentation with equation format


### Abacus Mental Math Training

[App page](https://appshunter.io/ios/app/abacus-mental-math-training/id6449295111)

This app offers professional training and assessment for abacus mental calculation and flash calculation, adhering to international grading standards. It features challenge and custom modes to help users improve their math and speed calculation skills.

**Highlights:** Adheres to World Abacus Mental Calculation Federation standards, Challenge Mode with 10 levels and 200 stages, Custom Mode for Flash Calculation and Abacus practice, Adjustable calculation parameters (number range, digits, time), Gradual difficulty progression, Simulates exam conditions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.59 | one-time |


## Frequently asked questions

### Is Abacus Lesson free?

Abacus Lesson is free to download, with in-app purchases available.

### Is Abacus Mental Math Training free?

Abacus Mental Math Training is free to download, with in-app purchases available.

### Which has better reviews, Abacus Lesson or Abacus Mental Math Training?

Abacus Lesson is rated higher. Abacus Lesson averages 4.9 out of 5 from 836 ratings, while Abacus Mental Math Training averages 4.1 from 31 ratings.

### Do Abacus Lesson or Abacus Mental Math Training have ads?

Both Abacus Lesson and Abacus Mental Math Training show ads.

### Which is updated more often, Abacus Lesson or Abacus Mental Math Training?

Abacus Lesson ships an update every 3 weeks, and Abacus Mental Math Training monthly. Most recently, Abacus Lesson was updated on October 29, 2026 and Abacus Mental Math Training on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*