# Anzan Expert vs π ~ Pi Fun App.

The clearest difference is update cadence: π ~ Pi Fun App. at every 2 days against Anzan Expert's every 3 months. Anzan Expert's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Anzan Expert ships an update every 3 months, π ~ Pi Fun App. every 2 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Anzan Expert | π ~ Pi Fun App. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (6 ratings)](https://appshunter.io/ios/app/anzan-expert/id1534494364/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | Ad-supported | — |
| Size | 29 MB | 17 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Moss](https://appshunter.io/developer/1534494486) | [Ryo Tsudukihashi](https://appshunter.io/developer/1320583602) |

## What reviewers say

### Anzan Expert

[App page](https://appshunter.io/ios/app/anzan-expert/id1534494364)

This app helps improve mental math skills by presenting numbers that flash on screen for users to add. It offers various stages with increasing difficulty and timed challenges, along with a practice mode for self-paced learning. Users can earn medals and track their progress.

**Highlights:** Timed flash calculation challenges, 20 stages with increasing difficulty, Practice mode for self-paced learning, Expert medals and level progression, Review missed questions, Multi-challenger profiles, Customizable themes

**In-app purchases:** none


### π ~ Pi Fun App.

[App page](https://appshunter.io/ios/app/pi-fun-app/id6566185298)

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

**In-app purchases:** none


## Frequently asked questions

### Is Anzan Expert free?

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

### Is π ~ Pi Fun App. free?

π ~ Pi Fun App. is free to download, with no in-app purchases.

### Do Anzan Expert or π ~ Pi Fun App. have ads?

Both Anzan Expert and π ~ Pi Fun App. show ads.

### Which is updated more often, Anzan Expert or π ~ Pi Fun App.?

Anzan Expert ships an update every 3 months, and π ~ Pi Fun App. every 2 days. Most recently, Anzan Expert was updated on October 24, 2026 and π ~ Pi Fun App. on October 27, 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.*