Cipheus

Chat in codes only you read

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

End-to-end encrypted + visually unreadable. Someone looking over your shoulder? They'll only see mysterious symbols. SOMEONE IS LOOKING AT YOUR SCREEN. What do they see? With Cipheus — nothing but beautiful, mysterious symbols. Most messaging apps encrypt your messages behind the scenes. That's great — but it doesn't help when someone is literally staring at your screen. Cipheus gives you two layers of privacy: end-to-end encryption to protect messages in transit, and cipher symbols to protect messages on your screen. No one can intercept them. No one can read them. Not even us. This isn't invisible security buried in settings. This is privacy you can actually see. HOW IT WORKS Type a message. Cipheus encrypts it end-to-end and transforms it into stunning cipher symbols using Language Packs. Your friend receives the cipher — and reveals the original by long-pressing. Release, and it hides again. Think of it as having your own secret language — one that only you and your friends speak. TWO LAYERS OF PRIVACY ◆ Layer 1: End-to-End Encryption — your messages are encrypted before they leave your device. No one can read them in transit — not hackers, not us, not anyone. ◆ Layer 2: Visual Cipher — your messages are displayed as cipher symbols on screen. No one looking over your shoulder, borrowing your phone, or scrolling through your notifications can read a thing. Other apps give you one. Cipheus gives you both. LANGUAGE PACKS — YOUR VISUAL SECRET CODE Choose from a growing collection of Language Packs, each with its own distinct aesthetic: ◆ Nordic Runes — ancient symbols with a mysterious edge ◆ Celestial — cosmic script that feels otherworldly ◆ Geometric — clean, modern cipher patterns ◆ And more being added regularly Each pack transforms your entire alphabet into a unique set of symbols. Switch packs anytime to change your visual language. ANTI-PEEKING PROTECTION Cipheus was designed from the ground up to protect your screen: ◆ Messages appear as cipher symbols by default — unreadable without decoding ◆ Long-press to reveal, release to re-hide — the message protects itself ◆ No message content in push notifications ◆ Even if someone picks up your phone, all they see are symbols they can't understand Your screen is your shield. CODE WORDS — HIDDEN TRIGGERS Set up secret trigger phrases with individual friends. When someone types the Code Word, something special happens — only you two know what it means. PRIVACY YOU CAN TRUST ◆ End-to-end encrypted — messages are unreadable to everyone except the recipient ◆ Sign in with Apple — use Hide My Email, no phone number needed ◆ No ads. No data selling. No third-party tracking. ◆ Minimal data collection — we don't want your data ◆ Full account deletion — your data is truly gone when you leave ◆ GDPR compliant WHY CIPHEUS? Every messaging app promises privacy somewhere in their settings. Cipheus makes privacy the experience itself. Your messages are encrypted so no one can intercept them. Your screen shows cipher symbols so no one can read them. When your conversations look like ancient runes to everyone except the person you're talking to, that's a kind of privacy no one can take away — not even someone standing right behind you. Stop worrying about who's reading your screen. Start speaking in secret. Download Cipheus. Create your cipher. Own your conversations. Terms of Use (EULA): https://cipheus.com/terms?source=app Privacy Policy: https://cipheus.com/privacy?source=app

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The developer, 洪涛 冯, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Contact Info
    • Identifiers
    • Diagnostics

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • 洪涛 冯
Size
  • 10.3 MB
Category
  • Social Networking
Compatibility
Requires iOS 16.0 or later.
  • iPhone
    Requires iOS 16.0 or later.
  • Mac
    Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English and Simplified Chinese
Age Rating
4+
  • 4+
  • Learn More
  • Contains
    Messaging and Chat
    User-Generated Content
In-App Purchases
Yes
  • Cipheus+ Yearly $29.99
  • Cipheus+ Monthly $3.99
  • Learn More
Copyright
  • © 2026 Flood
  • Developer Website
  • Privacy Policy

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