# One Rule vs Mega Donut

The clearest difference is in-app purchases: Mega Donut at none against One Rule's 1. Mega Donut also leads on ads (none vs shown). One Rule's advantage is update cadence (daily vs every 5 days). On price, device support and iOS requirement there is nothing between them.

Both are free to download. One Rule sells 1 one-off in-app purchase. Mega Donut asks for nothing beyond the download.

One Rule ships an update daily, Mega Donut every 5 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | One Rule | Mega Donut |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/one-rule-minimal-puzzle/id6757107576/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 5 days |
| Monetization | Free with in-app purchases | — |
| Size | 23 MB | 5 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FURKAN Uruk](https://appshunter.io/developer/1813484679) | [Dentagram](https://appshunter.io/developer/1863737857) |

## What reviewers say

### One Rule

[App page](https://appshunter.io/ios/app/one-rule-minimal-puzzle/id6757107576)

This game challenges you to find a hidden logic in each level by observing and analyzing patterns. With over 300 handcrafted puzzles and a minimalist design, it offers a relaxing yet brain-training experience. Play offline, track your progress, and compete on leaderboards.

**Highlights:** Discover hidden rules, Analyze patterns, 300+ handcrafted puzzles, Minimalist design, Offline play, Progress tracking, Leaderboard competition

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.99 | one-time |


### Mega Donut

[App page](https://appshunter.io/ios/app/mega-donut/id6792445321)

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

**In-app purchases:** none


## Frequently asked questions

### Is One Rule free?

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

### Is Mega Donut free?

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

### Do One Rule or Mega Donut have ads?

One Rule shows ads; Mega Donut does not.

### Which is updated more often, One Rule or Mega Donut?

One Rule ships an update daily, and Mega Donut every 5 days. Most recently, One Rule was updated on November 5, 2026 and Mega Donut on November 5, 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.*