VoidSend vs DirectChat

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.

Direct Chat lets you start a conversation with any phone number — without adding them to your contacts first. Perfect for one-time conversations with delivery drivers, customer support, online sellers, new acquaintances, or anyone you don't want cluttering your contact list. HOW IT WORKS 1. Select a country code from 240+ countries 2. Enter the phone number 3. Tap "Start Chat" — you're in the conversation instantly KEY FEATURES • Start Chat Instantly Enter any number and jump straight into a chat. No need to save the contact first. • Link Generator Create shareable direct chat links with optional pre-filled messages. Perfect for businesses, social media bios, and customer support. • QR Code Generator Turn any chat link into a scannable QR code. Save it, print it, or share it — anyone can scan and start a conversation. • Recent History Every number you open is saved locally so you can quickly re-open past conversations. • Favorites Star your frequently used numbers for one-tap access. • Clipboard Detection Copied a phone number? The app detects it automatically and offers to paste it in — saving you time. • Beautiful Dark Mode Fully supports Light, Dark, and System appearance. Looks stunning either way. • 240+ Country Codes Every country and territory dial code, with search. From Afghanistan to Zimbabwe. • Privacy First No sign-up. No account. No data leaves your device. Your numbers and messages are stored locally and never uploaded anywhere. GREAT FOR - Messaging online sellers on marketplace apps - Contacting delivery or service providers - Reaching businesses that share their numbers - Saving time when you don't want to save a contact - Generating click-to-chat links for your business Direct Chat is a simple utility that does one thing perfectly — gets you into a chat, fast.