# 放置ドラゴン vs 石臼

放置ドラゴン and 石臼 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

放置ドラゴン ships an update every 3 weeks, 石臼 every 5 weeks. The most recent releases landed on October 1, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | 放置ドラゴン | 石臼 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 69.2% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Ad-supported | — |
| Size | 125 MB | 124 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuki Morishige](https://appshunter.io/developer/1600157795) | [Hirokazu Oshimo](https://appshunter.io/developer/1627742277) |

## What reviewers say

### 放置ドラゴン

[App page](https://appshunter.io/ios/app/xrpg/id6473820155)

Nurture dragons by feeding them fruit, which they'll use to grow and produce more fruit. Engage in idle gameplay where dragons continue to grow and gather resources even when the app is closed. Defeat non-aggressive enemies to collect valuable items, similar to RPGs and hack-and-slash games.

**Highlights:** Feed fruit to dragons, Idle growth and resource gathering, Defeat enemies for items, Collect items like RPGs, Completely free to play

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

**In-app purchases:** none


### 石臼

[App page](https://appshunter.io/ios/app/ishiusu/id6477419440)

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

**In-app purchases:** none


## Frequently asked questions

### Is 放置ドラゴン free?

放置ドラゴン is free to download, with no in-app purchases.

### Is 石臼 free?

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

### Do 放置ドラゴン or 石臼 have ads?

Both 放置ドラゴン and 石臼 show ads.

### Which is updated more often, 放置ドラゴン or 石臼?

放置ドラゴン ships an update every 3 weeks, and 石臼 every 5 weeks. Most recently, 放置ドラゴン was updated on October 1, 2026 and 石臼 on September 11, 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.*