Hey Product Hunt! 👋 I built Cipheus because I missed the feeling of passing secret notes in class — that thrill of having a private language only you and your friend understood. Every messaging app today looks the same: text bubbles, read receipts, typing indicators. I wanted something that made conversations feel magical again. With Cipheus, your messages are transformed into beautiful cipher symbols using Language Packs — Nordic Runes, Celestial scripts, Geometric codes, and more. Your friend sees the cipher first, then long-presses to reveal the original message. Every conversation becomes a little puzzle. A few things I care deeply about: 🛡️ Privacy-first: No ads, no tracking, no phone number required. Sign in with Apple supported. 🎨 Visual identity: Each Language Pack has its own aesthetic — your chats actually look beautiful. 🤝 Shared secrecy: The fun multiplies when you and a friend pick a pack and start your own cipher language. I'm a solo developer and this has been months in the making. I'd love your honest feedback — what works, what doesn't, what Language Pack styles you'd want to see. Thanks for checking it out! 🙏

Cipheus

Secret messaging in cipher symbols 🔐

Secret messaging in cipher symbols 🔐