# Mental Math vs Sumflash

The clearest difference is ads: Mental Math at none against Sumflash's shown. Mental Math also leads on iOS requirement (15.0 vs 17.0). Sumflash's advantage is update cadence (weekly vs every 5 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Mental Math sells 4 in-app purchases, starting at $0.99 per month and Sumflash sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Mental Math ships an update every 5 weeks, Sumflash weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Mental Math | Sumflash |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (19 ratings)](https://appshunter.io/ios/app/mental-math-arithmetic-games/id1628058449/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 91 MB | 14 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mehul Mistri](https://appshunter.io/developer/1628058451) | [Toru Fukui](https://appshunter.io/developer/1888097145) |

## What reviewers say

### Mental Math

[App page](https://appshunter.io/ios/app/mental-math-arithmetic-games/id1628058449)

This app teaches children arithmetic and calculation skills using an abacus and mental math techniques. It offers fun quizzes and practice problems to improve cognitive performance and mathematical ability.

**Highlights:** Abacus learning, Mental calculation techniques, Vedic math tricks, Addition, subtraction, multiplication, division, Quiz-based learning, Progress monitoring

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mental Math Premium | $0.99 | per month |
| Mental Math Premium | $1.99 | per 3 months |
| Mental Math Premium | $6.99 | per year |
| Premium Ad-Free | $0.99 | one-time |


### Sumflash

[App page](https://appshunter.io/ios/app/sumflash-mental-math-flash/id6816003975)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $1.99 | per month |


## Frequently asked questions

### Is Mental Math free?

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

### Is Sumflash free?

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

### Do Mental Math or Sumflash have ads?

Sumflash shows ads; Mental Math does not.

### Which is updated more often, Mental Math or Sumflash?

Mental Math ships an update every 5 weeks, and Sumflash weekly. Most recently, Mental Math was updated on November 3, 2026 and Sumflash on October 31, 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.*