# ひらがな計算ザウルス vs Zanzou

The clearest difference is in-app purchases: ひらがな計算ザウルス at none against Zanzou's 1. ひらがな計算ザウルス also leads on iOS requirement (11.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Zanzou sells 1 one-off in-app purchase. ひらがな計算ザウルス asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 5, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | ひらがな計算ザウルス | Zanzou |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Size | 109 MB | 9 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | +9 | 4+ |
| Developer | [ZERONE](https://appshunter.io/developer/1708775781) | [atsuko imai](https://appshunter.io/developer/1830783417) |

## What reviewers say

### ひらがな計算ザウルス

[App page](https://appshunter.io/ios/app/id1541428995)

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

**In-app purchases:** none


### Zanzou

[App page](https://appshunter.io/ios/app/zanzou-visual-memory/id6761885740)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zanzou Plus – Lifetime | $3.99 | one-time |


## Frequently asked questions

### Is ひらがな計算ザウルス free?

ひらがな計算ザウルス is free to download, with no in-app purchases.

### Is Zanzou free?

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

### Do ひらがな計算ザウルス or Zanzou have ads?

Both ひらがな計算ザウルス and Zanzou show ads.

### Which is updated more often, ひらがな計算ザウルス or Zanzou?

ひらがな計算ザウルス ships an update every 3 months, and Zanzou every 3 months. Most recently, ひらがな計算ザウルス was updated on November 5, 2026 and Zanzou on November 7, 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.*