# Idle Medieval Prison Tycoon vs Onsen Stack

The clearest difference is in-app purchases: Onsen Stack at none against Idle Medieval Prison Tycoon's 12. Idle Medieval Prison Tycoon's advantage is iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Idle Medieval Prison Tycoon sells 12 one-off in-app purchases. Onsen Stack asks for nothing beyond the download.

Idle Medieval Prison Tycoon ships an update every 6 weeks, Onsen Stack every 3 weeks. The most recent releases landed on October 18, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Idle Medieval Prison Tycoon | Onsen Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1.8K ratings)](https://appshunter.io/ios/app/idle-medieval-prison-tycoon/id6458690710/reviews)** | — |
| Number of ratings | **1.8K** | — |
| Positive reviews | 48.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 241 MB | 182 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [WAZZAPPS GLOBAL LIMITED](https://appshunter.io/developer/1562813968) | [SCM PUBLISHING](https://appshunter.io/developer/372943201) |

## What reviewers say

### Idle Medieval Prison Tycoon

[App page](https://appshunter.io/ios/app/idle-medieval-prison-tycoon/id6458690710)

Build and manage a medieval prison empire. Hire guards, construct cells, and upgrade your facilities to earn gold. Keep prisoners content and defend against riots, escapes, and even dragon attacks.

**Highlights:** Build and expand prison empire, Hire and manage guards, Construct cells and facilities, Upgrade for increased earnings, Manage prisoner contentment, Defend against prison challenges

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gems 80 | $0.99 | one-time |
| Knight of sorts (+3h) | $4.99 | one-time |
| Gems 500 | $4.99 | one-time |
| Castellan(+50% earnings) | $4.99 | one-time |
| Offer for beginners | $4.99 | one-time |
| Gems 1200 | $9.99 | one-time |
| NO ADS | $9.99 | one-time |
| Scholarly (+100% earnings) | $10.99 | one-time |
| Offer for experts | $10.99 | one-time |
| Offer for pros | $21.99 | one-time |
| Gems 2500 | $22.99 | one-time |
| All under control | $39.99 | one-time |

**What reviewers like**

- 👍 Fun game
- 🚀 Enjoyable progression
- 🔒 No intrusive ads

**What reviewers complain about**

- 🐛 Bugs with timers and ads
- 🔍 Lack of content and endgame
- 💰 Expensive in-app purchases

**Reported bugs**

- Timers not working correctly
- In-app purchases not registering
- Prisoners not getting fed properly

**Requested features**

- More levels and prisons to explore
- Expanded gameplay and challenges
- Events and new content updates


### Onsen Stack

[App page](https://appshunter.io/ios/app/onsen-stack/id6804281103)

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

**In-app purchases:** none


## Frequently asked questions

### Is Idle Medieval Prison Tycoon free?

Idle Medieval Prison Tycoon is free to download, with in-app purchases available.

### Is Onsen Stack free?

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

### Do Idle Medieval Prison Tycoon or Onsen Stack have ads?

Both Idle Medieval Prison Tycoon and Onsen Stack show ads.

### Which is updated more often, Idle Medieval Prison Tycoon or Onsen Stack?

Idle Medieval Prison Tycoon ships an update every 6 weeks, and Onsen Stack every 3 weeks. Most recently, Idle Medieval Prison Tycoon was updated on October 18, 2026 and Onsen Stack on October 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.*