Cipher Grid vs Intercept

A new secret message to crack. Every single day. Cipher Grid is a daily puzzle game where you decode real encrypted messages using actual historical ciphers. Each puzzle is a quote hidden behind a different code. Your job is to figure out the letters and reveal it. DAILY PUZZLE One new challenge every day. Each day uses a different cipher and difficulty, so no two days feel the same. 18 CIPHERS TO DECODE Caesar. Atbash. ROT13. Morse. Vigenère. Playfair. Semaphore. Maritime Flags. And more. Each one is a real encryption method used throughout history — from ancient scribes to World War spies to modern radio operators. LEARN AS YOU PLAY Built-in lessons explain every cipher from the ground up. No prior knowledge needed. Start as a complete beginner and work your way to mastering techniques used by real cryptographers. ENCRYPT AND DECRYPT A full toolkit covering 22 ciphers, free for everyone. Includes a working Enigma I simulator with configurable rotors, reflector, ring settings, and plugboard, plus the Hill matrix cipher. ZODIAC CHALLENGE A separate set of hand-picked puzzles to solve at your own pace. Free. PRO Unlock unlimited practice puzzles and Secure Message — public-key encrypted messages and photos that only the intended recipient can decrypt. Keys live on your device. Share the envelope as text or QR code, no servers involved. Every future feature added to the app is included. PRIVACY FIRST No accounts. No analytics. No tracking. No ads. Everything stays on your device. Available in English, French, German, Dutch, and Chinese. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://gist.github.com/ColdCompile/cf9b3ec7bc1f95c6379477e4bd097cf9

Every day you intercept one encrypted transmission. Crack the cipher letter by letter — and with every solved chapter, an ongoing spy story unfolds, season after season. THE GAME • One monoalphabetic substitution cipher per day, solvable in 2–4 minutes • SIGNAL instead of a fail limit: mistakes and hints cost signal strength, but no chapter is ever lost • Practice mode with selectable difficulty — three free rounds a day • Spoiler-free share grid: show how you solved it without giving the message away • Your streak is your clearance rank — from CANDIDATE to GHOST THE STORY After each solve you read the dossier: VESPER, MAGPIE and their network hunt a traitor broadcasting on stolen frequencies. Every chapter ends on a cliffhanger for tomorrow. The story starts at chapter 1 for you — no matter when you join. And it is built for the long run: INTERCEPT is in active development, with more seasons on the way. FIELD KIT (optional one-time purchase) Unlimited practice instead of three free rounds a day, archive replay of solved chapters, extended statistics, season color themes and room for three blackout tokens. The daily chapter stays free forever — no subscription, no ads. PRIVACY Intercept runs fully offline. No data collection, no tracking, no account. Game Center and purchases are handled entirely by Apple. Terms of Use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/