Enigma for Android (TM) - Solve Cryptograms

Enigma Promotional Enigma Solve CryptogramsEnigma Solve CryptogramsVersion 3.03.00 - Google's Android Operating System Games: Brain & Puzzle Release Notes Dust off your old decoder ring and sharpen your code breaking skills. Solve cryptograms with Enigma. There are over 2000 puzzles included with more coming in future updates. (I'm typing as fast as I can...)

What is a Cryptogram?

A cryptogram is a block of text that has been encrypted using a "substitution cipher". In a substitution cipher, each letter is replaced with a different one. For example: All letters A are changed to the letter Q. All letters B are changed to the letter R. etc. This mapping of letters is different for each game. Using patterns, letter frequencies, and common sense you attempt to determine the letter for which each of the encrypted letters stands.


Using punctuation, single letter, and double letter words you can often identify or narrow down a few of the letters to start. For example, the punctuation in the following encrypted text SYD'E might lead you to believe that the E represents the letter T as you might find in the word DON'T. Single letter words are usually going to be I or A. Double letter words, such as AN, ON, IT, OF, etc. can be useful in narrowing down that elusive letter.

Letter Frequencies

You can also gain some insight by looking at the number of times a letter occurs in the encrypted text. The letter 'E' is the most commonly used letter in the English language and it would stand to reason that it is a likely match for the most common encrypted letter. According this article, the following letters, in this order, can be used for code-breaking purposes: 'ETAONRISH'. Of course, this is only a guideline as each author's style differs or the subject matter requires the use of less common letters.

Trial and Error

What else is there to say? At some point you will no doubt need to resort to this tried and true approach.

Application Features

The application provides several features to help you if you get stuck. Enigma Cryptogram Hints Preferences

  • On-Screen Navigation - Use the on-screen directional arrows to move around. Helpful if you don't have a d-pad or trackball.
  • Pressing Space or Delete will clear the current letter.
  • Save Game - You can save your game and come back to it if you need a break.
  • Show/Hide Source - The source of the quote/text block is hidden by default. This hint will expose the source for you and hide it again to open up more screen space.
  • Show Letter - When you really get stuck, this will expose the letter of your choice in the cryptogram.
  • Show Puzzle - When all hope is lost, this will show you the answer to the puzzle you've been working on.
  • Letter Frequency Table - Shows you the number of times a coded letter appears in the text.
  • Used Letters - Shows in the keyboard display which letters are used and still available.
  • Showing Duplicates - Duplicate letters are shown as italicized. So, if you enter the same letter for two different codes, Enigma will show all occurrences of that entered letter italicized.
  • If you complete the puzzle without using the "Show Puzzle" option, you will be given the opportunity to email the quote to yourself or someone else.

Customization Options

Enigma can be customized to your personal tastes by choosing the Preferences menu item and selecting the appropriate options. Enigma Cryptogram Colors Font Keyboard Preferences

Color Preference

Select from different color schemes. Feel free to contact me with suggestions for more.

  • Original - Reminiscent of the old green screen monitors.
  • The Blues - Blue is the basis of this color scheme.
  • Scarlet Letters - Deep reds make this a pleasing choice.
  • Black, White, and Read All Over - A simple black and white color scheme.

Font Sizes

Select from different Font sizes. This can be very helpful on tablets where you might want the puzzle to take up more room and be easier to manage.

  • Small - Useful for smaller devices.
  • Medium - The original size and still the default.
  • Large - Tablets will work well with this or the next size up.
  • Extra-Large - Tablets will work well with this or the next size down.

Next Letter Preference

After entering a letter the focus will change based on your choice from the following options:

  • Don't advance to the next letter. (Current/Default Behavior)
  • Advance to the next letter.*
  • Advance to the next empty letter.*

* When at the end of the puzzle, it won't wrap to the beginning. Note: When the backspace/delete or space keys are pressed, the cursor will not move regardless of the preferences set.

Keyboard Preference

Select from different keyboard styles.

  • Normal Keyboard - Traditional QWERTY keyboard.
  • Gallery Keyboard - Gallery display such that you fling the letters left or right to select.

Physical Keyboard

This application will work best with a device that has a physical keyboard. You simply have more screen space in which to see the puzzle.

Soft Keyboard

Enigma will also give you access to a soft keyboard. The soft-keyboard can be toggled using the keyboard button on the Action Bar. There are two styles of keyboard which you can select via the preferences. Enigma Cryptogram Keyboard

Normal Keyboard

This is the traditional QWERTY keyboard.

Gallery Keyboard

The Gallery Keyboard works by listing the letters in a gallery display such that you fling them left or right to choose the letter you want to place. The letters are larger and easier to select which might help when you find the Normal Keyboard too small to use. Use the "Select" buttons to place the highlighted letter in the puzzle.


The Enigma Trial Edition only has 10 puzzles but is otherwise fully functional. If you enjoy the trial, please consider upgrading to the full version. Android is a trademark of Google Inc. Use of this trademark is subject to Google Permissions.