# ひらがな計算ザウルス vs Neon Spire

The clearest difference is update cadence: Neon Spire at every 4 days against ひらがな計算ザウルス's every 3 months. ひらがな計算ザウルス's advantage is iOS requirement (11.0 vs 15.0). 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.

ひらがな計算ザウルス ships an update every 3 months, Neon Spire every 4 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | ひらがな計算ザウルス | Neon Spire |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 4 days** |
| Size | 109 MB | 75 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | +9 | 4+ |
| Developer | [ZERONE](https://appshunter.io/developer/1708775781) | [HARADA ISSEI](https://appshunter.io/developer/6799936385) |

## 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


### Neon Spire

[App page](https://appshunter.io/ios/app/neon-spire-stack-tower/id6799936383)

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

**In-app purchases:** none


## 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 Neon Spire free?

Neon Spire is free to download, with no in-app purchases.

### Do ひらがな計算ザウルス or Neon Spire have ads?

Both ひらがな計算ザウルス and Neon Spire show ads.

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

ひらがな計算ザウルス ships an update every 3 months, and Neon Spire every 4 days. Most recently, ひらがな計算ザウルス was updated on November 5, 2026 and Neon Spire on November 6, 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.*