# Guess the Rule: Logic Puzzles — Endless Puzzles + Multiplayer

> Logic puzzle game to deduce secret rules governing shape sequences. (iPhone/iPad app by James Senter.)

- Source: https://appshunter.io/ios/app/guess-the-rule-logic-puzzles/id1550411766 (this page in markdown: same URL + `.md`)
- Developer: [James Senter](https://appshunter.io/developer/994354969)
- Category: Games, Board, Puzzle
- Price: Free with in-app purchases
- Rating: 4.80/5 from 37 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 9 MB
- Languages: American English
- Released: 2021-02-21
- Data updated: 2026-08-20
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/guess-the-rule-logic-puzzles/id1550411766/reviews.md

## What is Guess the Rule?

A square next to a circle? A red triangle on the left? One of each color? There’s a secret rule to determine which sequences of 3 colored shapes are allowed and which are not. Using your powers of inductive logic, you must predict whether each new sequence fits. Collect evidence, adjust your predictions, and guess the rule–it’s a lot like the scientific method!

Guess the Rule is easy to learn but difficult to master. Start with simple rules, but if you want to spice things up, try double rules joined by “and” or “or”. You’ll find endless challenges, some of which are absolutely diabolical!

Play alone or with friends! Compete for daily high scores, or see who can guess the rule fastest in a pass-and-play match.

Features:
-Endless variety of possible rules
-Quick sessions
-Simple 2-button interface
-2 levels of difficulty*
-Pass and play with up to 4 players*
-Daily leaderboards (requires iOS 14)
-No ads
-Accessible with VoiceOver

*A one-time in-app purchase is required to unlock Hard Mode and multiplayer.

## Key features

- Endless rule variety
- Quick play sessions
- Simple interface
- Two difficulty levels
- Pass-and-play multiplayer
- Daily leaderboards
- VoiceOver accessibility

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium Unlock | $2.99 | one-time |


## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/guess-the-rule-logic-puzzles/id1550411766/reviews.md

### 5/5 — Cool pattern recognition game

*2026-07-05*

Fun, simple game. Doesn’t need WiFi or anything. Good for Brain and fun to play with others!

### 5/5 — Great for science lovers

*2025-11-05*

If you read the app description, it says you’ll have to make use of the scientific method. Not only that, but you feel a sense of accomplishment if you get the rule right! I highly recommend this app for science lovers!

### 5/5 — Amazing Game!

*2024-02-16*

Simple but sleek UI and a genuinely challenging game come together for an extremely enjoyable experience. The scoring system is fun and is a good way to measure success without getting discouraged. I love puzzle games and haven’t found a game quite like this before or since!

### 5/5 — Just as it says on the box

*2024-01-23*

this game runs exactly as advertised, and it’s really fun to do in those idle moments. Except it’s not idle at all, it hurts my brain in the best ways and I’ve really enjoyed it.

### 5/5 — Interesting and elegant Zendo-like logical puzzler

*2023-12-21*

If you’re a fan of logical deduction games like Mastermind and more latterly Zendo, this is definitely for you. A simple “work out the rule” mechanic that seems anything but simple when you’re staring at the shapes and colours trying to work out what the sets have in common. Worth your time!

### 5/5 — A genuine challenge

*2022-05-27*

It’s pretty difficult at times, ie, near impossible, but that’s cool. I enjoy the challenge.

### 5/5 — Great game for when you need that little bit of distraction for your brain. If only...

*2021-03-26*

I like the concept of this as wwell as the simple-to-play interface but not easy-to-win game itself. I only wish the colors and type of shapes were labeled so that the game can be played using voice over. I’m blind and have played all this publisher’s other games so assume this one would be VO accessible too. That’s on me though since it doesn’t specify that in the description and this being a visual sort of game whereas the others are solely textual I shouldn’ve realized. I still wouldn’t say it’s not accessible. All the text can be read, the 2 choices are labeled and even the results of your guesses are fully read by voice over. It detects there being 3 individual spaces which I assume are the shapes, so even though I’m not any sort of coder I think this game could be made 100 percent accessible with a little effort. A game called egg formula is made up of different patterned eggs and the publisher labels each pattern differently. I’m thinking this game could do something similar so that voice over users could enjoy this game as well. The options out there for replayyablble unique games that both blind and sighted people can play together are extremely limited so I think the publisher would gain a whole group of new players. But I’m no programmer with no clue how complicated these changes would be so I’m just putting the idea out there. Fun concept though and different from other puzzle games I’ve played so I eagerly awake possible future updates 🤞🏻

**Developer response:** Thank you for your thoughts. The game has now been updated with VoiceOver accessibility!

## Frequently asked questions about Guess the Rule

### What is Guess the Rule?

Guess the Rule is a logic puzzle game where you deduce secret rules that determine which sequences of colored shapes are allowed. It's designed to be easy to learn but challenging to master, offering endless variations.

### How do you play Guess the Rule?

You observe sequences of shapes and their allowed/disallowed status to gather evidence. Based on this evidence, you adjust your predictions and attempt to guess the secret rule governing the sequences. It's similar to the scientific method.

### Does Guess the Rule have ads?

No, Guess the Rule is ad-free. The game does not contain advertisements, allowing for an uninterrupted puzzle-solving experience.

### Can I play Guess the Rule with friends?

Yes, you can play Guess the Rule with friends. It offers a pass-and-play mode for up to 4 players, allowing you to compete to guess the rule fastest.

### What are the difficulty levels in Guess the Rule?

Guess the Rule features two levels of difficulty: standard and hard. The hard mode, along with multiplayer, requires a one-time in-app purchase to unlock.

### Is Guess the Rule available offline?

The description does not specify offline play capabilities. However, features like daily leaderboards suggest an internet connection may be required for some functionalities.

### What devices can I play Guess the Rule on?

Guess the Rule is supported on iPhone, iPad, and iPod. It is also accessible with VoiceOver for visually impaired users.

### How often is Guess the Rule updated?

The latest version of Guess the Rule was released on August 14, 2023. The app is updated periodically to introduce new content and improvements.

## Version history (last 5 releases)

### 2.0 — 2023-08-14

-Guess the Rule is now free to play, with a one-time in-app purchase to unlock Hard Mode and multiplayer
-New kinds of rules

### 1.3 — 2023-07-22

-Guess the Rule will soon become free to play, with a premium unlock for hard mode and multiplayer. If you buy the game now or have already bought it, be sure to download this version and open it at least once. If you do, you'll keep the premium unlock forever!
-Improved tutorial.

### 1.2 — 2021-06-15

Rebalanced difficulty: Normal mode is more welcoming to new players, and Hard mode is no longer impossible.
-Normal mode no longer contains "and" rules.
-Hard mode contains a mix of "and" and "or" rules.
-"Or" rules have been simplified.
-"If...then" rules have been removed.

### 1.1 — 2021-04-02

VoiceOver accessibility

### 1.0.1 — 2021-02-22

iOS 12 compatibility fix

## Apps similar to Guess the Rule

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Color Code Breaker](https://appshunter.io/ios/app/color-code-breaker/id319256200) | 4.7 (2,258) | Free | Games |
| [Break•the•Code](https://appshunter.io/ios/app/breakthecode/id979015665) | 4.7 (156) | Free | Games |
| [Dominant Mind Code Breaker](https://appshunter.io/ios/app/dominant-mind-code-breaker/id843726202) | 4.7 (7,156) | Free | Games |
| [Block Blast！](https://appshunter.io/ios/app/block-blast/id1617391485) | 4.9 (2,667,795) | Free | Games |
| [Cryptogram: Word Brain Puzzle](https://appshunter.io/ios/app/cryptogram-word-brain-puzzle/id1644099880) | 4.6 (238,856) | Free | Games |
| [Dart Score](https://appshunter.io/ios/app/dart-score/id331867557) | 2.7 (26) | Free | Games |

## More apps by James Senter

- [Nano Empire](https://appshunter.io/ios/app/nano-empire/id994354970)
- [A Few Minutes of Glory](https://appshunter.io/ios/app/a-few-minutes-of-glory/id1447578204)
- [Evelyn's Farm](https://appshunter.io/ios/app/evelyns-farm/id1490259856)
- [Pocket Reality](https://appshunter.io/ios/app/pocket-reality/id1621962541)
- [Magical Maintenance Mystery](https://appshunter.io/ios/app/magical-maintenance-mystery/id6741719052)

All apps by James Senter: https://appshunter.io/developer/994354969

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*