# Matsy Abacus vs Flash Mental Math

The clearest difference is in-app purchases: Flash Mental Math at none against Matsy Abacus's 5. Matsy Abacus's advantage is ads (none vs shown) and update cadence (monthly vs every 3 months). On price, ratings volume and device support there is nothing between them.

Both are free to download. Matsy Abacus sells 5 in-app purchases, starting at $2.99 per month. Flash Mental Math asks for nothing beyond the download.

Matsy Abacus holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 30 and 18 respectively.

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

## The numbers

| Metric | Matsy Abacus | Flash Mental Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (30 ratings)](https://appshunter.io/ios/app/matsy-abacus/id1439473353/reviews)** | [4.7 (18 ratings)](https://appshunter.io/ios/app/flash-mental-math-simple/id1547944841/reviews) |
| Number of ratings | **30** | 18 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 66 MB | 14 MB |
| Requires iOS | **13.4** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IGOR ILIN](https://appshunter.io/developer/1439473352) | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) |

## What reviewers say

### Matsy Abacus

[App page](https://appshunter.io/ios/app/matsy-abacus/id1439473353)

This educational app helps children master mental arithmetic through engaging games and adaptive trainers. It utilizes abacus techniques, flash cards, and proven methods to boost calculation speed, focus, and memory. Suitable for students, parents, and teachers seeking effective mental math tools.

**Highlights:** Abacus flash cards, Multiplication and division trainers, Mental math exercises, Brother/Friend techniques, 5050 mode, Speed & accuracy games, Adaptive difficulty

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mental Workout Premium Month | $2.99 | per month |
| Premium (6 months) | $8.99 | per 6 months |
| Matsy Premium Year | $9.99 | per year |
| Mental Workout Premium Year | $14.99 | per year |
| Mental Workout Premium | $7.99 | 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 Matsy Abacus free?

Matsy Abacus 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, Matsy Abacus or Flash Mental Math?

Matsy Abacus is rated higher. Matsy Abacus averages 4.9 out of 5 from 30 ratings, while Flash Mental Math averages 4.7 from 18 ratings.

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

Flash Mental Math shows ads; Matsy Abacus does not.

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

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

---

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