# Soroban Training vs Flash Mental Math

The clearest difference is in-app purchases: Flash Mental Math at none against Soroban Training's 1. Flash Mental Math also leads on iOS requirement (15.6 vs 18.0). Soroban Training's advantage is update cadence (every 2 weeks vs every 3 months) and ratings volume (179 vs 18). On price, rating, ads and device support there is nothing between them.

Both are free to download. Soroban Training sells 1 one-off in-app purchase. Flash Mental Math asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Soroban Training against 4.7 for Flash Mental Math. That said, the two scores are not equally well evidenced: Soroban Training has 179 ratings behind it against 18, so its average is the more settled of the two.

Soroban Training ships an update every 2 weeks, Flash Mental Math every 3 months. The most recent releases landed on October 21, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Soroban Training | Flash Mental Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (179 ratings)](https://appshunter.io/ios/app/soroban-training/id1519658576/reviews) | **[4.7 (18 ratings)](https://appshunter.io/ios/app/flash-mental-math-simple/id1547944841/reviews)** |
| Number of ratings | **179** | 18 |
| Positive reviews | 80.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 8 MB | 14 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jumpei Adachi](https://appshunter.io/developer/1516414955) | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) |

## What reviewers say

### Soroban Training

[App page](https://appshunter.io/ios/app/soroban-training/id1519658576)

Learn and practice abacus skills directly on your touchscreen. Generate custom problems to hone your abacus techniques, even with a physical abacus.

**Highlights:** Touchscreen abacus simulation, Custom problem generation, Practice with physical abacus, Abacus learning tool

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | 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 Soroban Training free?

Soroban Training 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.

### Which has better reviews, Soroban Training or Flash Mental Math?

Flash Mental Math is rated higher. Soroban Training averages 4.7 out of 5 from 179 ratings, while Flash Mental Math averages 4.7 from 18 ratings.

### Do Soroban Training or Flash Mental Math have ads?

Both Soroban Training and Flash Mental Math show ads.

### Which is updated more often, Soroban Training or Flash Mental Math?

Soroban Training ships an update every 2 weeks, and Flash Mental Math every 3 months. Most recently, Soroban Training was updated on October 21, 2026 and Flash Mental Math on September 29, 2026.

---

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