# Flash Mental Math vs Abacus Mental Math Training

The clearest difference is rating: Flash Mental Math at 4.7 against Abacus Mental Math Training's 4.1. Flash Mental Math also leads on in-app purchases (none vs 1). Abacus Mental Math Training's advantage is update cadence (monthly vs every 3 months) and iOS requirement (10.0 vs 15.6). On price, ratings volume, ads and device support there is nothing between them.

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

Flash Mental Math holds the better App Store score, 4.7 against 4.1. Both are backed by a comparable volume of ratings — 18 and 30 respectively.

Flash Mental Math ships an update every 3 months, Abacus Mental Math Training monthly. The most recent releases landed on August 3, 2026 and August 22, 2026 respectively.

## The numbers

| Metric | Flash Mental Math | Abacus Mental Math Training |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (18 ratings)](https://appshunter.io/ios/app/flash-mental-math-simple/id1547944841/reviews)** | [4.1 (30 ratings)](https://appshunter.io/ios/app/abacus-mental-math-training/id6449295111/reviews) |
| Number of ratings | 18 | **30** |
| Positive reviews | — | 20.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 14 MB | 34 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) | [Peikun Duan](https://appshunter.io/developer/1240254007) |

## What reviewers say

### 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


### 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 Flash Mental Math free?

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

### Is Abacus Mental Math Training free?

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

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

Flash Mental Math is rated higher. Flash Mental Math averages 4.7 out of 5 from 18 ratings, while Abacus Mental Math Training averages 4.1 from 30 ratings.

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

Both Flash Mental Math and Abacus Mental Math Training show ads.

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

Flash Mental Math ships an update every 3 months, and Abacus Mental Math Training monthly. Most recently, Flash Mental Math was updated on August 3, 2026 and Abacus Mental Math Training on August 22, 2026.

---

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