# Abacus Lesson vs Motion Physics Gallery

The clearest difference is in-app purchases: Motion Physics Gallery at none against Abacus Lesson's 3. Motion Physics Gallery also leads on ads (none vs shown). Abacus Lesson's advantage is iOS requirement (11.0 vs 26.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Abacus Lesson sells 3 one-off in-app purchases. Motion Physics Gallery asks for nothing beyond the download.

Abacus Lesson ships an update monthly, Motion Physics Gallery every 5 weeks. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Abacus Lesson | Motion Physics Gallery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/abacus-lesson-division/id1593317741/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 132 MB | 5 MB |
| Requires iOS | **11.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hirokazu Komatsu](https://appshunter.io/developer/1523833531) | [Naoki Chiba](https://appshunter.io/developer/1895372512) |

## What reviewers say

### Abacus Lesson

[App page](https://appshunter.io/ios/app/abacus-lesson-division/id1593317741)

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.

**Highlights:** Learn abacus division techniques, Develop mental calculation skills, Focus on Soroban method, Step-by-step division instruction, Builds on addition, subtraction, multiplication

**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 |


### Motion Physics Gallery

[App page](https://appshunter.io/ios/app/motion-physics-gallery/id6799315138)

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

**In-app purchases:** none


## Frequently asked questions

### Is Abacus Lesson free?

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

### Is Motion Physics Gallery free?

Motion Physics Gallery is free to download, with no in-app purchases.

### Do Abacus Lesson or Motion Physics Gallery have ads?

Abacus Lesson shows ads; Motion Physics Gallery does not.

### Which is updated more often, Abacus Lesson or Motion Physics Gallery?

Abacus Lesson ships an update monthly, and Motion Physics Gallery every 5 weeks. Most recently, Abacus Lesson was updated on October 24, 2026 and Motion Physics Gallery on October 29, 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.*