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.

-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 or in-app purchases
-Accessible with VoiceOver

What’s New

Version 1.2

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.

Ratings and Reviews

4.8 out of 5
12 Ratings

12 Ratings

Mollycita ,

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

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!

App Privacy

The developer, James Senter, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Game Center

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  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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