Cipher Challenge - Codebusters

5.0 stars4 reviewsFree

4+Version 1.0.7Updated 2/15/2026, 8:12:10 PM

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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.