# CryptoClub Daily Ciphers — Mathematical Cryptograms

> Mathematical Cryptograms (iPhone/iPad app by The University of Chicago.)

- Source: https://appshunter.io/ios/app/cryptoclub-daily-ciphers/id6479719924 (this page in markdown: same URL + `.md`)
- Developer: [The University of Chicago](https://appshunter.io/developer/373835814)
- Category: Games, Entertainment, Puzzle, Word
- Price: Free
- Age rating: 4+
- Requires: iOS 12.0 · 89 MB
- Languages: American English
- Released: 2024-08-25
- Data updated: 2026-08-18
- User reviews in markdown: https://appshunter.io/ios/app/cryptoclub-daily-ciphers/id6479719924/reviews.md

## What is CryptoClub Daily Ciphers?

Have fun cracking secret codes! The messages here have been encrypted with mathematical ciphers. Find the patterns and use them to help crack the codes. 

Each day a new encrypted message is released. Messages include anecdotes about the history of cryptography, fun facts about science, and inspirational quotes. See how many days in a row you can successfully crack a message!

All released messages are available through the app’s calendar. Every day of the week except Sunday has its own cipher type: Caesar, Additive, Keyword, Multiplicative, Vigenère, or Affine. The ciphers generally get more complicated as the week goes on. Sunday’s message is a wildcard that could use any of those cipher types. 

Don’t know what these ciphers are? No problem! The app has descriptions and examples of the patterns involved. It also has tools such as frequency tables that can help you guess letters, along with cipher tables to help you keep track of your guesses and look for patterns. 

CryptoClub Daily Ciphers is a companion app to the Daily Messages portion of the cryptoclub.org website. Check out the website for games, badges, and other activities that involve secret codes.

An Internet connection is required to use this app. Data rates may apply. Consult your carrier for information about data rates.

Funding for development was provided by the National Science Foundation.


## Version history (last 5 releases)

### 1.0.45 — 2024-10-21

Changed the log in flow to make it more apparent to new users that an account is only necessary for users who wish to coordinate their progress with the website.

Reworked the Remember Me function to be less confusing.

Addressed a vulnerability when deleting an account.

### 1.0.43 — 2024-10-12

Reworked the flow when registering for a new CryptoClub.org account to make the steps more clear.

Added text on the login screen to help clarify that login is not required but is provided for those users who wish to coordinate their progress between the app and the CryptoClub.org website.

Minor bug and typo fixes.

### 1.0.41 — 2024-09-16

We added Welcome and How to Play screens to help clarify what new users should expect when using the app. We also fixed a few bugs related to the Remember Me feature.

### 1.0.3 — 2024-09-03

Version 1.0.3 fixes an issue that could cause the app to incorrectly report a username as being previously taken during account registration.

### 1.0 — 2024-08-25

No release notes.

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| --- | --- | --- | --- |
| [DailyDecipher](https://appshunter.io/ios/app/dailydecipher/id6670185056) | — | Free | Games |
| [Cryptogram: Cipher Word Master](https://appshunter.io/ios/app/cryptogram-cipher-word-master/id6739309731) | 4.3 (3) | Free | Games |
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All apps by The University of Chicago: https://appshunter.io/developer/373835814

## Related topics

[cryptoclub daily ciphers](https://appshunter.io/ios/topics/cryptoclub-daily-ciphers) · [classical ciphers](https://appshunter.io/ios/topics/classical-ciphers) · [ciphera](https://appshunter.io/ios/topics/ciphera)

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*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 2026-08-18.*