Duo Messenger vs Tysha

Duo Messenger is your go-to secure and private messaging app. Designed with privacy at its core, Duo Messenger cares about the security of your data, ensuring it remains inaccessible to anyone else. - SECURE MESSAGE PRIVACY Duo Messenger is designed to prioritize your privacy. Your messages are encrypted end-to-end, guaranteeing that only you and your intended recipient can access them. Duo Messenger ensures that every message is safeguarded from illegal decryption or unauthorized access. Duo Messenger's advanced security measures always maintain the confidentiality and integrity of your communications at all times. - GUARANTEE USER ANONYMITY Duo Messenger is dedicated to providing complete anonymity to its users. Each user is given a unique Duo Number, which allows you to chat with others without revealing your phone number or email address. While you can access your account using your phone number or email, this information remains private and cannot be accessed by anyone else in any way. - NO ADS, NO TRACKERS Duo Messenger is completely ad-free, providing a smooth and clean user experience. You can enjoy uninterrupted and focused communication without the distraction of advertisements. Additionally, Duo Messenger does not track user activity within the app or share user data with third parties. Customer Service: support@duomessenger.app --- Terms: https://duomessenger.app/terms.html

Tysha is a messenger that starts with a nickname you invented, not with your phone number. Get it while it is free - the free ride will not last forever. NO NUMBER, NO EMAIL, NO PASSWORD An account is a username plus 12 words generated on your device. We never see them and store them nowhere. There is another side to that: lose the words and nobody can restore the account, us included. INTRODUCTIONS BY A ONE-TIME CODE Contacts come only from invitations. The app never reads your address book, there is no people search, and nobody can find you by number - there is nothing to search by. A code stops working once used, or after 15 minutes. ENCRYPTED ON THE DEVICES Messages and calls are encrypted on the devices themselves: the libsignal library, PQXDH key agreement (X25519 + ML-KEM-1024), Double Ratchet. Keys are created on the device and never leave it. IPHONE AND IPAD Tysha runs on iPhone and iPad. A second device is linked to your account with a code from the main one; every device has its own keys, and they never leave it. The main device manages the account, and a linked one can be unlinked at any time. All your conversations stay encrypted. Security does not break. WHAT THE SERVER GETS A sealed envelope: bytes, size, time and a queue address - 32 random bytes with no link to your username. It never sees text, files, the sound of a call or an address book. No ads, no third-party analytics, no profiling. WHAT IS INSIDE - disappearing messages, from 30 seconds to four weeks - view once for photos and video - delete for both sides, not just your own copy - voice messages, files up to 64 MB, reactions, replies, edits - voice and video calls: relayed by default, so the other side never sees your IP address - group calls for up to five people, each pair encrypted separately - quick replies to an incoming call - a new glass look and alternative app icons - small groups with sender keys - a Face ID lock and a wipe after too many wrong codes - your own ringtone, 12- or 24-hour clock, Ukrainian and English WHAT IT COSTS Free for now. No ads, no in-app purchases, no subscriptions. So get it while the ride is free - it will not stay free forever. WHAT WE DO NOT PROMISE The lock protects the screens; it does not re-encrypt the store. A screenshot notice cannot stop someone photographing the screen. Disappearing messages cannot stop someone copying the text first. Each of these limits is stated inside the app itself. Privacy: https://tysha.cloud/en/privacy/ Support: https://tysha.cloud/en/support/