Papachat vs VoidSend

PapaChat is a private messaging app for closed communities. Create or join a community, chat with members in groups or direct messages, and manage everything with a clean, distraction-free interface. COMMUNITIES - Create a community for your family, team, or group - Invite members with shareable invite codes (24-hour expiry) - Search and request to join existing communities - Admin tools: approve/reject join requests, remove members, create groups - Leave a community anytime — admin role auto-transfers to the next member GROUP & DIRECT MESSAGING - Real-time group chat — every community gets a General group automatically - Direct messages — tap any member in the People directory to start a private conversation - Read receipts — double blue checkmarks when your message is read - Message reactions — long-press to react with emoji - Reply to messages — swipe to quote and respond - Delete your own messages — a placeholder preserves conversation context - Archive chats to tidy up without losing history ADMIN & MODERATION - Delete any message in your community - Mute disruptive members (timed or indefinite) - Transfer or share admin role with co-admins - Require approval for group joins - Audit log tracks all moderation actions - Export conversations as PDF for evidence or records PEOPLE DIRECTORY - See all community members at a glance - Admin badges show who manages the community - Search by name or @username - Tap to start a direct conversation PRIVACY BY DESIGN - Sign in with Apple — no phone number or email required - No access to your contacts, location, or files - No ads, no tracking, no data selling - Server-side security rules enforce access control - All data encrypted in transit BUILT FOR SIMPLICITY PapaChat keeps messaging simple. No stories, no reels, no marketplace — just communities and conversations.

VoidSend is a zero-knowledge encrypted messenger built for a post-quantum world. Every message, file, and call is encrypted on your device before it ever leaves — our servers act as a blind relay, mathematically unable to decrypt your data. ZERO-KNOWLEDGE ARCHITECTURE Unlike other messengers that promise privacy, VoidSend's Blind Relay design means the server only ever sees encrypted blobs. No plaintext. No metadata leaks. Your encryption keys never leave your device. POST-QUANTUM ENCRYPTION VoidSend uses hybrid encryption combining X25519 with ML-KEM-768 (Kyber), protecting your conversations against both today's threats and tomorrow's quantum computers. Messages are sealed with AES-256-GCM, and identities are verified with ML-DSA-65 post-quantum signatures. MESSAGING • End-to-end encrypted direct and group messages • Disappearing messages (5 seconds to 7 days) • Encrypted file sharing with automatic 24-hour server-side deletion • Emoji reactions, replies, and typing indicators • Message search across your conversation history VOICE & VIDEO CALLS • Peer-to-peer WebRTC audio and video calls • Optional post-quantum encrypted media streams • Call history WEB3 PAYMENTS (Only available on www.voidsend.xyz) • Built-in multi-chain wallet: Ethereum, Base, and Solana • Send and receive ETH, USDC, USDT, SOL, and SPL tokens • Wallet derived from your encryption seed — one identity, one key PASSWORDLESS AUTHENTICATION • Sign in with your crypto wallet (EIP-712 signature) • Or use Face ID / Touch ID with Passkeys • No email. No phone number. No passwords. Just you. STORIES & PROFILES • Share ephemeral photos and videos with your contacts • Custom avatars and usernames • Online status visible only to mutual contacts PRIVACY BY DESIGN • No data collection beyond your username and encrypted data • Block contacts and control who can message you • Cross-platform: your encrypted identity syncs seamlessly across all your devices VoidSend doesn't ask you to trust us — it's built so you don't have to.