# CipherBoB — An introduction to Ciphers

> Educational app for learning and using historical ciphers and codes. (iPhone/iPad app by Today's New Idea.)

- Source: https://appshunter.io/ios/app/cipherbob/id1309198233 (this page in markdown: same URL + `.md`)
- Developer: [Today's New Idea](https://appshunter.io/developer/1030347487)
- Category: Education, Reference
- Price: $1.99
- Age rating: 4+
- Requires: iOS 17.0 · 13 MB
- Languages: English
- Released: 2018-01-13
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/cipherbob/id1309198233/reviews.md

## What is CipherBoB?

Have fun learning about and using some of the most important ciphers and codes used throughout history and satisfy your inner nerd in the process!

Have you ever been intrigued by secret codes and ciphers? 

Have you ever wondered how messages were encrypted before computers existed?

Have you been fascinated by the story of the Enigma machine and wanted to know how it worked?

Inspired by a visit to Bletchley Park in England, home of the UK codebreakers during the 1939-1945 world war, CipherBoB lets you explore some of the most important codes and ciphers used throughout history.

Using CipherBob you can create ciphers of each type and then use these to encipher messages to send to your friends or decipher messages received from your friends and in the process learn about the ciphers you use. The app includes a brief summary of the history of each cipher type as well as step by step walk through of how each cipher worked.

Ciphers currently included in the app are:

* Caesar ciphers - the cipher that Julius Caesar used for all his secret communications 

* Substitution ciphers - the natural successor of the Caesar cipher and still used today

* Polybius Square ciphers - perhaps the first fractionating cipher

* Book ciphers - perhaps the favourite cipher of mystery writers and movies

* Morse code - want to try your hand at tapping out some Morse or perhaps you have some Morse audio you want to capture and decode. You can also copy and paste Morse code audio between CipherBoB and other apps

* The infamous Enigma machine - you can use our Enigma engine to encrypt/decrypt messages between you and your friends or configure the engine to decode the messages used in the many books and movies on the subject

* Lorenz - perhaps the least well known yet critically important cipher of World War II (WWII) with some saying its significance was greater than that of Enigma!

* Public/Private key ciphers - the cornerstone of a secure internet, learn how they work from a very simple implementation 

Today’s New Idea is a “not for profit” business so all proceeds from the sale of this app go toward the development of other apps we hope users will find educational or beneficial.

## Key features

- Learn historical ciphers
- Create and decipher messages
- Caesar, Substitution, Polybius Square
- Book ciphers and Morse code
- Enigma and Lorenz machine simulation
- Public/Private key cipher introduction

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/cipherbob/id1309198233/reviews.md

### 3/5 — Cool features but only works in messages app

*2022-03-04*

This app is informative and cool to use. The messages extension is seamless to use as long as you have configured the ciphers in the app.

The only problem is that the keyboard doesn’t work in the app. The keyboard will show up but when you try to type in your plain text nothing happens…

## Frequently asked questions about CipherBoB

### What ciphers can I learn with CipherBoB?

CipherBoB includes Caesar ciphers, Substitution ciphers, Polybius Square ciphers, Book ciphers, Morse code, the Enigma machine, Lorenz cipher, and Public/Private key ciphers.

### How does CipherBoB help me learn?

The app provides a brief history of each cipher type and step-by-step walkthroughs of how they worked, allowing you to create and decipher messages to practice.

### Can I use CipherBoB offline?

The provided data does not specify offline functionality. However, educational apps of this nature often function without an internet connection after initial download.

### What devices does CipherBoB support?

CipherBoB is available for iPhone and iPad devices.

### Is CipherBoB suitable for children?

CipherBoB has an age rating of 4+, making it suitable for a wide range of users interested in learning about ciphers.

### How often is CipherBoB updated?

The app was last updated on May 10, 2024, indicating active development and support from the developer.

### What is the price of CipherBoB?

CipherBoB is a paid app priced at $1.99.

### Does CipherBoB have ads?

No, CipherBoB does not contain advertisements, offering an uninterrupted learning experience.

## Version history (last 5 releases)

### 4.5 — 2024-05-10

New in this version:

- Major iOS 17 compatibility update
- Enhanced morse code audio decoding
- You can now reset all Enigma and Lorenz settings with a single tap
- Fixed an issue affecting reloading the configuration for the Book cipher has been resolved

### 4.1 — 2021-01-21

New in this version:
- iOS 14 support
- Encipher, send and decipher messages directly in iMessage - no more need for copy and paste acrobatics! (remember to configure the cipher first)

Updated in this version:
- Fixed a bug that could prevent Enigma cipher configuration
- Simplified the configuration of Public/Private key cipher
- Fixed a minor typo in some feedback messages

### 3.6 — 2020-08-09

New in this version:
• iOS 13+
• Dark mode & light mode support
• Lorenz cipher added
• Landscape support for iPad

Updated in this version:
• Improved input support and validation for external keyboards
• Better use of iPad screen space
• Updated rotor controls in Enigma and Lorenz ciphers
• Improved performance through code optimisation
• Further improvements to Copy & Paste behaviour

### 1.4 — 2018-02-17

Numerous bug fixes and enhancements including:

Enhancements:
* Simplified the use of the Book cipher by removing the 'Encode' button. The Book cipher now behaves like the other ciphers
* More consistent behaviour when moving between Book cipher scenes
* Better handling of invalid words in the Book cipher
* Improved copy & paste behaviour across all ciphers
* Morse cipher can now have audio files pasted directly in and analysed. Currently supports .caf, .m4a and .wav
* Context sensitive keyboard now makes better use of the extra width available in different devices
* Improved input support and validation for external keyboards (bluetooth)
* Added more help and feedback messages

Bug fixes:
* Fixed a drag and drop issue affecting the Polybius Square configuration
* Fixed an rotor display issue that affected both day and message rotor settings in Enigma cipher
* Fixed a bug preventing sending of cipher messages in iPads

### 1.3 — 2018-02-12

Numerous bug fixes and enhancements including:

- Improved the drag & drop of the Polybius Square
- Improved the parsing of Book cipher reference text
- Improved audio playback and analysis in Morse code
- Fixed a bug affecting the storage of the Public/Private configuration
- Added extra validation of public keys in Public/Private cipher
- Numerous minor text grammar & spelling changes
- Added a basic user guide explaining what each of the buttons in the app does

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All apps by Today's New Idea: https://appshunter.io/developer/1030347487

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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 2026-06-10.*