# そろばんを1から覚える初心者のためのそろばん教室 vs Flash Mental Math

The clearest difference is in-app purchases: Flash Mental Math at none against そろばんを1から覚える初心者のためのそろばん教室's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. そろばんを1から覚える初心者のためのそろばん教室 sells 1 one-off in-app purchase. Flash Mental Math asks for nothing beyond the download.

そろばんを1から覚える初心者のためのそろばん教室 ships an update every 2 months, Flash Mental Math every 3 months. The most recent releases landed on September 17, 2026 and August 3, 2026 respectively.

## The numbers

| Metric | そろばんを1から覚える初心者のためのそろばん教室 | Flash Mental Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (18 ratings)](https://appshunter.io/ios/app/flash-mental-math-simple/id1547944841/reviews)** |
| Number of ratings | — | **18** |
| Positive reviews | 57.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 13 MB | 14 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [kenji kiuchi](https://appshunter.io/developer/553473005) | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) |

## What reviewers say

### そろばんを1から覚える初心者のためのそろばん教室

[App page](https://appshunter.io/ios/app/1/id1095959894)

Learn abacus from scratch with this educational app. It offers clear explanations for beginners, including visual aids for adding and removing beads. Advanced users can test their skills in challenge modes.

**Highlights:** Beginner-friendly abacus explanations, Visual bead manipulation, Practice problems, Timed challenges, Level-based progression, Abacus multiplication tables

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告の削除と全機能解放 | $9.99 | one-time |


### Flash Mental Math

[App page](https://appshunter.io/ios/app/flash-mental-math-simple/id1547944841)

Practice mental arithmetic with various difficulty levels and custom modes. This app serves as a brain training tool to enhance calculation skills.

**Highlights:** Mental arithmetic practice, Easy, normal, and difficult modes, Customizable modes, Brain training, Calculation skill improvement

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

**In-app purchases:** none


## Frequently asked questions

### Is そろばんを1から覚える初心者のためのそろばん教室 free?

そろばんを1から覚える初心者のためのそろばん教室 is free to download, with in-app purchases available.

### Is Flash Mental Math free?

Flash Mental Math is free to download, with no in-app purchases.

### Do そろばんを1から覚える初心者のためのそろばん教室 or Flash Mental Math have ads?

Both そろばんを1から覚える初心者のためのそろばん教室 and Flash Mental Math show ads.

### Which is updated more often, そろばんを1から覚える初心者のためのそろばん教室 or Flash Mental Math?

そろばんを1から覚える初心者のためのそろばん教室 ships an update every 2 months, and Flash Mental Math every 3 months. Most recently, そろばんを1から覚える初心者のためのそろばん教室 was updated on September 17, 2026 and Flash Mental Math on August 3, 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.*