Word Unknown takes inspiration from both hangman and mastermind to create an incredibly fun and simple word game experience. Your objective is to guess a randomly generated word in as few moves as possible using both lexical and deductive logic. Once a legal guess is made, you'll get X's and O's in response. Each X represents a correct letter in the correct position, and each O represents a correct letter in the wrong position. There are five different difficulties (word lengths) to choose from and a daily challenge for each so you can compete with friends! Best of all, the game is 100% free and open source!

Word Unknown is the second word game developed by Christopher Cinq-Mars Jarvis. His first is Synonymy, narrated by Richard Dawkins, which received distinctions at GDC and E3.

What’s New

Version 3.0

This app has been updated by Apple to use the latest Apple signing certificate.

Long overdue update addressing UI and performance improvements as well as improvements to the gameplay.

Ratings and Reviews

4.9 out of 5
11 Ratings

11 Ratings

Trans roj463 ,

Elegantly simple.

I can see it having real educational value.

Nuutla ,

Fun, addictive, with a bug

Way too addictive!
There is a bug preventing one from guessing a proper noun and yet I have gotten stuck in games without end where the word was clearly “Hebrew,” “Muslim,” or “Mormon.”

Matthew💥💤 ,


Brilliant experience, can’t get enough…. definitely worth the download.

App Privacy

The developer, Cinq-Mars Media, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

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

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