Kedr vs Tysha

KEDR is an absolute safe, anonymous and encrypted messenger for texting, (video) calling and sending files. This messenger is not connected to your phone number and does not require any permissions to your personal data like your contacts. Simply create a nickname and ask your chat partner for his' in order to start chatting or calling him.

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/