Classical Ciphers
可 陈
About this app
- Category Education
- Age 10
- Updated Sep 15, 2025
- OS IOS
Editor reviews
Classical Ciphers is a concise cryptography learning and utility app for encrypting, decrypting, and analyzing text using classic methods. Perfect for students, puzzle enthusiasts, and educators, it brings Caesar, Vigenere, Playfair, Affine, Rail Fence, Substitution, and more into a clean, guided workspace. See step-by-step workings, run frequency analysis, and understand why each transformation works. Fast, accurate, and beginner friendly, it’s both a cryptography learning app and a practical classical cipher tool for quick encryption and decryption.
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How to use:
1. Download and open the app, then choose a mode: Learn, Encrypt/Decrypt, or Analyze.
2. Select a cipher type such as Caesar, Vigenere, Playfair, or Substitution.
3. Enter your text and any required key; view the result instantly along with step-by-step workings.
4. Open Analyze to run frequency analysis, try auto-solve helpers for supported ciphers, and adjust alphabets if needed.
5. Save your work, copy or export results, and revisit recent tasks from History for quick reuse.