QSafeChat vs Mivra

Secure. Simple. Fast. QSafeChat is a free messenger for everyone: chat, share photos and videos, post statuses and make voice and video calls — all end-to-end encrypted, with no ads and nothing to set up. WHY "QUANTUM-SAFE"? Most encrypted apps today rely on math that a large enough quantum computer is expected to break. Someone could record your encrypted messages now and try to open them years later — "harvest now, decrypt later". QSafeChat protects against that with post-quantum cryptography (PQC): new encryption algorithms designed to resist quantum computers, standardized by the U.S. National Institute of Standards and Technology (NIST). Every direct conversation starts with a PQXDH key agreement using ML-KEM and continues with a Double Ratchet, so your messages stay private today and tomorrow. SIMPLE TO START • Pick a name and an @handle — that's your identity • Add people by scanning their QR code (or sharing yours as an image), or by @handle • Your phone number is used once to check you are a real person, then discarded — never stored by us, never searchable FAST AND FRIENDLY • Messages, photos, videos, voice notes and documents • Voice and video calls, encrypted on your device • Statuses for your contacts, reactions, replies and disappearing messages • English and Turkish WHAT STAYS PRIVATE • Direct messages, media, statuses and calls are end-to-end encrypted • Your contact list never leaves your device • Everything the app keeps on your phone lives in an encrypted vault, behind an optional PIN or Face ID • No ads, no trackers, no analytics HONEST BY DESIGN Every conversation is labeled truthfully: group chats are currently protected in transit while group end-to-end encryption is in development. INDEPENDENT INFRASTRUCTURE QSafeChat runs on its own servers — no third-party messaging cloud in between. The server only sees sealed envelopes and the routing data needed to deliver them, and you can delete your account and its server-side data at any time from Settings. FREE FOR EVERYONE No invitation, no waiting list, no subscriptions, no in-app purchases. Questions or feedback: mert@qsaferoom.com

Mivra is a privacy-focused messaging app that protects private conversations with end-to-end encryption. No phone number or email address is required—create a Mivra username and start chatting. What you can do: • Start one-to-one and group chats • Send text, photos, files, and voice messages • Reply to, forward, pin, and delete messages • Connect with a Mivra username without sharing a phone number or email address • Protect your account with recovery codes and device management • Block and report unwanted accounts Privacy is built into Mivra. New conversations are encrypted before the first message is sent, and notification content is hidden by default. Mivra is designed to keep you in control of your conversations.