# Rules! vs Star Duster

The clearest difference is rating: Star Duster at 5.0 against Rules!'s 4.2. Star Duster also leads on chart position (#180 vs unranked). Rules!'s advantage is monetization model (free vs paid) and ratings volume (67 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

Rules! costs $2.99 and Star Duster $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Star Duster holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Rules! has 67 ratings behind it against 2, so its average is the more settled of the two.

Rules! ships an update monthly, Star Duster every 3 weeks. The most recent releases landed on September 27, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Rules! | Star Duster |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | [4.2 (67 ratings)](https://appshunter.io/ios/app/rules/id840811083/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/star-duster/id1539341529/reviews)** |
| Number of ratings | **67** | 2 |
| Positive reviews | 68.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#180** |
| Size | 25 MB | 31 MB |
| Requires iOS | 15.2 | **14.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [137b](https://appshunter.io/developer/411511949) | [Beardybird AB](https://appshunter.io/developer/1164888655) |

## What reviewers say

### Rules!

[App page](https://appshunter.io/ios/app/rules/id840811083)

Engage in a fast-paced, challenging, and fun puzzle game with a hundred levels. Features a daily brain workout for Apple Watch and animated stickers. Offers multiple game modes and unique mechanics.

**Highlights:** Daily Apple Watch brain workout, Animated sticker pack, Beginner, Expert, or Timeless game modes, Multi-touch interface, Color perception assistance, Surprising new game mechanics

**Features:** macOS Compatibility, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Challenging and fun game
- 👍 Gorgeous design and smooth UI
- 👍 Great brain workout
- 👍 Addictive gameplay
- 👍 Fair monetization with no ads or IAPs

**What reviewers complain about**

- 🕰️ Very short time limit
- 🔁 Having to restart from level 1 after losing
- 🎨 Colorblind-unfriendly
- 🤔 Repetitive gameplay with same rule order

**Reported bugs**

- Freezing and crashing issues, especially on Apple Watch
- Unresponsive tapping on certain tiles

**Requested features**

- Option to save progress and continue from last level
- Randomized rule order
- Difficulty settings with longer time limits
- Colorblind accessibility options
- More game modes and challenges


### Star Duster

[App page](https://appshunter.io/ios/app/star-duster/id1539341529)

**Currently charting:** #180 Top Paid · Casual (US App Store)

Experience a retro-inspired arcade challenge that harks back to the 80s. Control your character through unique gameplay mechanics, including physical head movements via push-ups, and enjoy an immersive soundscape. Compete for high scores across two distinct game modes.

**Highlights:** Two distinct game modes, High score lists, Head control via push-ups (iOS), Retro 80s aesthetic, Immersive soundscape

**Features:** Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Rules! free?

Rules! costs $2.99, with no in-app purchases.

### Is Star Duster free?

Star Duster costs $2.99, with no in-app purchases.

### Which has better reviews, Rules! or Star Duster?

Star Duster is rated higher. Rules! averages 4.2 out of 5 from 67 ratings, while Star Duster averages 5.0 from 2 ratings.

### Do Rules! or Star Duster have ads?

Neither Rules! nor Star Duster shows ads.

### Which is updated more often, Rules! or Star Duster?

Rules! ships an update monthly, and Star Duster every 3 weeks. Most recently, Rules! was updated on September 27, 2026 and Star Duster on September 21, 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.*