PaperPhonePlus vs 咚咚咚

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

和好友做邻居，想念了就敲敲门。 咚咚咚是一个和亲密朋友分享日常的小应用。邀请朋友成为邻居，即使相隔很远，也能随时去对方门前串串门。 想你了，敲敲门 用自己的节奏敲敲朋友的门，传递这一刻的想念。 开门，分享这一刻 收到敲门声，可以分享眼前的瞬间、门镜照自拍或者相册里最新的照片，回应对方的问候。 不在身边，也可以合影留恋 收到好友的照片或者视频，可以合影留恋！ 把日常贴在门前 挑几张最近的照片，布置自己的门前。朋友来串门时，就能看看你最近的生活。 把好友的门放在桌面 添加桌面小组件，把好友的门和门前照片放到手机桌面。想去串门时，点击小组件，就能来到对方门前。 用户协议：https://knock-api.5lab.app/user-agreement.html 隐私政策：https://knock-api.5lab.app/privacy-policy.html