# Flash mental calculation vs Anzan+

The clearest difference is rating: Flash mental calculation at 5.0 against Anzan+'s 4.0. Flash mental calculation also leads on update cadence (every 5 months vs every 11 months). Anzan+'s advantage is in-app purchases (none vs 1). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Flash mental calculation sells 1 one-off in-app purchase. Anzan+ asks for nothing beyond the download.

Flash mental calculation holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Flash mental calculation ships an update every 5 months, Anzan+ every 11 months. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Flash mental calculation | Anzan+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/flash-mental-calculation/id1224937523/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/anzan-plus-mental-math-game/id6480097764/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 5 months** | Every 11 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 11 MB | 9 MB |
| Requires iOS | **15.6** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [kenji kiuchi](https://appshunter.io/developer/553473005) | [Erika Fujita](https://appshunter.io/developer/1554660176) |

## What reviewers say

### Flash mental calculation

[App page](https://appshunter.io/ios/app/flash-mental-calculation/id1224937523)

Practice mental arithmetic with this educational app. Review your calculation process, and easily re-challenge mistaken problems from your past logs. Upgrade to save more calculation history.

**Highlights:** Practice flash mental arithmetic, Review calculation process, Rechallenge mistaken problems, Save past calculation logs, Log history saved after purchase

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove AD & All function Release. | $9.99 | one-time |


### Anzan+

[App page](https://appshunter.io/ios/app/anzan-plus-mental-math-game/id6480097764)

Engage in quick mental math challenges with 10 questions per round. Build combos, unlock bonus rounds, and track your progress. Customize your experience with adjustable music and haptic feedback.

**Highlights:** 10-question rounds, Adjustable difficulty levels, Combo building for musical progression, Bonus round for perfect scores, Personal best tracking, Offline practice mode, Customizable sound and haptics

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

**In-app purchases:** none


## Frequently asked questions

### Is Flash mental calculation free?

Flash mental calculation is free to download, with in-app purchases available.

### Is Anzan+ free?

Anzan+ is free to download, with no in-app purchases.

### Which has better reviews, Flash mental calculation or Anzan+?

Flash mental calculation is rated higher. Flash mental calculation averages 5.0 out of 5 from 2 ratings, while Anzan+ averages 4.0 from 1 ratings.

### Do Flash mental calculation or Anzan+ have ads?

Both Flash mental calculation and Anzan+ show ads.

### Which is updated more often, Flash mental calculation or Anzan+?

Flash mental calculation ships an update every 5 months, and Anzan+ every 11 months. Most recently, Flash mental calculation was updated on October 24, 2026 and Anzan+ on October 23, 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.*