Pocket Enigma

Authentic M3 & M4 simulator

$2.99 · Designed for iPad. Not verified for macOS.

Pocket Enigma puts a working World War II-era rotor-cipher simulator in your pocket. Choose the three-rotor M3 or four-rotor naval M4 machine, configure its daily key, and press the keys as you would on the original machine. Watch the moving rotors step, see the output lamp illuminate, and follow each letter through the complete electrical signal path. CONFIGURE THE MACHINE - Switch between M3 and M4 - Choose three different moving rotors from I through VIII - Select the stationary Beta or Gamma wheel in M4 - Use wide B/C reflectors in M3 or thin B/C reflectors in M4 - Set every rotor window and ring setting - Connect up to ten plugboard pairs FOLLOW THE SIGNAL Pocket Enigma shows plaintext and ciphertext in traditional five-letter groups. After each key press, open the signal trace to follow the letter through the plugboard, rotors, reflector, and return path. BUILT FOR EXPLORATION Machine settings are validated before they are applied and stored locally on your device. The simulator includes documented rotor turnover behaviour, including middle-rotor double stepping and the dual notches of rotors VI, VII, and VIII. Pocket Enigma works entirely offline. It has no account, advertising, analytics, or tracking. Pocket Enigma is an educational historical simulator. The Enigma cipher is obsolete and must not be used to protect real information. This app is not affiliated with or endorsed by any historical manufacturer, museum, or government agency.

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Better iPad layout

Version 1.1

The developer, Anders Mørk-Pedersen, 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 Collected

    The developer does not collect any data from this app.

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

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    Anders Mørk-Pedersen
    Size
    5.1 MB
    Category
    Education
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © 2026 Anders Mørk-Pedersen
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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