Cipher Challenge - Codebusters
Bao Lei
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About this app
A cipher decoding game. Cipher modes: Aristocrat, Patristocrat, Caesar, Random substitution cipher, K1 cipher, K2 cipher Additional features: - See letter frequency table and cipher letter -> original letter mapping table - Share link or game id to friends and compete on the same puzzle - View all the unlocked quotes - See score history - Unlocked quotes and scores are sync'ed across iPhone, iPad and Mac computers through iCloud - Enable hard mode for a special challenge Also perfect for Science Olympiad (SciOly) Codebusters practice.
What's new
Version 1.0.9 · Oct 25, 2026
iPhone Duo support!