# ひらがな計算ザウルス vs Missing Digits

The clearest difference is in-app purchases: ひらがな計算ザウルス at none against Missing Digits's 1. ひらがな計算ザウルス also leads on iOS requirement (11.0 vs 17.0). Missing Digits's advantage is ads (none vs shown) and update cadence (monthly vs every 3 months). On price and device support there is nothing between them.

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

ひらがな計算ザウルス ships an update every 3 months, Missing Digits monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ひらがな計算ザウルス | Missing Digits |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Monthly** |
| Size | 109 MB | 1 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [ZERONE](https://appshunter.io/developer/1708775781) | [torankirite](https://appshunter.io/developer/1883564850) |

## What reviewers say

### ひらがな計算ザウルス

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Missing Digits

[App page](https://appshunter.io/ios/app/missing-digits-math-puzzle/id6799607537)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | 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 Missing Digits free?

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

### Do ひらがな計算ザウルス or Missing Digits have ads?

ひらがな計算ザウルス shows ads; Missing Digits does not.

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

ひらがな計算ザウルス ships an update every 3 months, and Missing Digits monthly. Most recently, ひらがな計算ザウルス was updated on October 24, 2026 and Missing Digits on October 25, 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.*