PaperPhone Plus — Secure, Private Messaging
PaperPhone Plus is a privacy-first instant messaging app built with cutting-edge end-to-end encryption. Every private conversation is protected by hybrid quantum-safe cryptography, ensuring your messages remain confidential — today and in the future.
SECURE MESSAGING • End-to-end encrypted private chats using X25519 + Kyber KEM hybrid encryption • Double Ratchet protocol with forward secrecy — each message uses a unique key • Quantum-resistant encryption protects against future threats • Encryption keys are generated and stored only on your device — never on our servers • Verify encryption security with Safety Numbers
RICH COMMUNICATION • Send text, photos, videos, voice messages, files, and stickers • Real-time voice and video calls with crystal-clear quality • Group voice and video calls — stay connected with your team • Group chats for family, friends, and communities • Typing indicators and read receipts for private conversations • Built-in emoji keyboard and sticker packs
MOMENTS & TIMELINE • Share photos, videos, and thoughts with friends through Moments • Control who sees your posts with granular visibility settings (public, selected friends only, or exclude specific contacts) • Browse and interact with the community Timeline • Post anonymously on the Timeline for open discussions • Like and comment on posts from friends and the community
PRIVACY YOU CAN TRUST • No phone number or email required to sign up — just pick a username • Auto-delete messages with configurable timers (1 day to 30 days) • Privacy controls for Moments — hide specific friends' posts or hide yours from them • Two-Factor Authentication (2FA) with TOTP for account security • Session management — view and revoke active devices at any time • Delete your account and all associated data permanently whenever you choose
CONTENT SAFETY • Community guidelines and Terms of Use establish clear standards for appropriate behavior • Report objectionable content directly from any post, comment, or message • Block abusive users instantly — blocked users' content is removed from your feed immediately • All reports are reviewed and acted upon within 24 hours
STAY CONNECTED • Push notifications powered by Apple Push Notification service (APNs) keep you informed • QR code scanning to quickly add friends or join groups • Friend tags to organize your contacts into custom groups • Remark names for contacts — set personalized display names • Group management with invite links, member roles, and group notices
SELF-HOSTED & OPEN • Connect to any compatible server — you choose where your data lives • Proxy support (HTTP, HTTPS, SOCKS5) for flexible network configurations • Open-source architecture that puts you in control
DESIGNED FOR YOU • Beautiful, modern interface with Dark Mode support • Available in 8 languages: English, 中文, 日本語, 한국어, Français, Deutsch, Русский, Español • Key fingerprint verification for maximum security assurance • Lightweight and fast — optimized for a smooth experience on iPhone and iPad
Your privacy is not a feature — it's our foundation. PaperPhone Plus gives you the freedom to communicate securely without compromising on the rich messaging experience you expect.
Privacy Policy: Available within the app Terms of Use: Available within the app
I've never seen such a small chat application; it's still fully end‑to‑end encrypted.
Fix UI with iPhone 17 Pro Max, iPhone Duo
Version 2.6.1
The developer, 易捷 刘, 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 Not Collected
The developer does not collect any data from this app.
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
易捷 刘
Size
7.4 MB
Category
Social Networking
Compatibility
Requires iOS 16.0 or later.
iPhone Requires iOS 16.0 or later.
iPad Requires iPadOS 16.0 or later.
Mac Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
