Quix Chat vs Umbera · Private Messenger

Quix Chat — A Private, Safe Chat App With No Phone Number Required Quix Chat is built for people who want to connect without exposing their phone number. No one can message you just because they have your number. You connect only by consent, and you stay in control of every conversation. PRIVACY FIRST, ALWAYS Most messaging apps are built around your phone number — anyone who has it can find and message you. Quix Chat does not use phone numbers at all. You sign in with just your email and a one-time passcode, and that email is used only for sign-in: never visible, never searchable, never shared. You decide who can reach you, every time. END-TO-END ENCRYPTED DIRECT CHATS Your one-to-one messages, photos, and voice notes are end-to-end encrypted on your device, so no one in between can read them. Group and Room messages are secured in transit and at rest, and the app tells you clearly which kind of chat you are in. CONNECT WITHOUT EXCHANGING PHONE NUMBERS Selling something online? Meeting someone new? Instead of trading phone numbers, connect through Quix Chat. • Share a one-time Quix Chat number with someone you do not fully trust yet • Share your permanent Quix Chat number with people you know and trust • Pair instantly by QR code or invite link • Both people must agree before you connect • Deleted contacts need mutual approval to reconnect Your phone number is never part of the exchange. A DIFFERENT PROFILE FOR EVERY GROUP Use a different display name and profile in each group, so you decide exactly what you share in each space. Ideal for communities, buy-and-sell groups, teams, and private discussions. GROUPS & ROOMS FOR REAL LIFE Organize conversations the way real teams work. Create a group for your community or organization, then split it into Rooms (for example Marketing, HR, or Projects). Rooms can be public or private within a group. Run polls, pin announcements, and keep every topic in its own space. STATION — YOUR OWN BROADCAST CHANNEL Create a Station to post updates and announcements to everyone who follows you, without group chat back-and-forth. • Share short video posts that automatically expire after a few days, keeping your Station current • Followers and subscribers see your posts in one place, separate from their regular chats • Great for businesses, public figures, and brands who want to broadcast rather than chat one-on-one GLOBAL CHAT — JOIN A LIVE PUBLIC ROOM Drop into open, topic-based chat rooms and talk in real time, no pairing or contacts required. • Join public rooms by topic and chat instantly • Messages are ephemeral: they are relayed live and are not stored on our servers • Leave anytime; nothing lingers after the conversation ends A FULL COMMUNICATION SUITE — ALL INSIDE QUIX CHAT • 1-on-1 chat, group chat, and room-based chat • Voice and video calls, one-to-one and in groups • Video broadcast to groups and rooms • Photos, voice messages, and stickers • Schedule a message to send later EXTRA LAYERS OF PRIVACY • Secret Vault: keep private photos and videos behind a PIN • Lock any individual chat with a PIN • Send photos as one-time view • Screenshot protection on sensitive messages CLEAN, CONTROLLED CONVERSATIONS • Delete chat history anytime • Remove a contact and clear the history together • Block or report anyone, at any time • No lingering data, no unwanted access NO SPAM. NO COLD MESSAGES. NO SURPRISES. Quix Chat blocks unsolicited messages by design. No one can reach you without your consent. Available in 15 languages. Because privacy isn't a feature — it's the foundation. Your conversations should belong to you. Download Quix Chat and keep your phone number to yourself.

Umbera is a private messenger for people who don't want their conversations tied to a phone number, an e-mail address or an address book. NO PHONE NUMBER. NO E-MAIL. NO CONTACT UPLOAD. Sign up with a login and a password - that is all. Umbera never asks for your phone number, never reads your contacts and never uploads your address book. In the app you are an anonymous address, not a number that ties back to you. SAFE BY DESIGN • In chats, people can message you only after you accept their contact request — there is no random matching with strangers. • In Communities you post under a separate pseudonym in each channel; community rules are shown before your first post. • Report any message or user in two taps; the reported message disappears from your chat immediately. • Block anyone from the chat menu, a message or a contact card; block group members too. • Abusive messages, names and previews are hidden by a built-in filter. • Our moderation team reviews every report within 24 hours, removes objectionable content and suspends or permanently bans offending accounts. • Umbera is for adults 18+. Community rules: zero tolerance for objectionable content and abusive users. END-TO-END ENCRYPTED CHATS AND FILES Messages, photos, files and voice notes are encrypted on your device before they leave it. The server only handles sealed data it cannot read, and removes it automatically after a limited time. Set messages to disappear on a timer when you need them gone. ENCRYPTED VOICE AND VIDEO CALLS Voice and video calls are encrypted end to end and connect device to device whenever the network allows. Group video calls are supported. COMMUNITIES Follow public and private channels about the things you care about. In every channel you appear under a separate pseudonym, not your account. Report, hide or block any post, comment, channel or member; reports are reviewed by our moderation team. PROFILE STATUS AND BADGES Share a short status with your contacts and add a badge next to your name — an emoji, an animated emoji, your own GIF or icon. TOR IN ONE TAP Route the whole app through the built-in Tor client to hide your IP address from the server and from your network provider. APP LOCK Protect the app with a PIN, Touch ID or Face ID. Your conversation history lives on your device only - not in a cloud you do not control. UNDER THE HOOD - Messages and files: hybrid post-quantum encryption - ML-KEM-1024 together with X25519, ML-DSA (Dilithium) signatures and AES-256-GCM - designed to stay secure against future quantum computers. - Group chats use MLS (RFC 9420), the IETF standard for group encryption. - Sealed delivery: the server cannot read the content of a message or see who sent it. - The cryptographic core is published on GitHub for anyone to review - see umbera.app/proof. Official site: umbera.app · Safety & reports: abuse@umbera.app Umbera Premium is an auto-renewable subscription: 1 month, 3 months, 6 months or 12 months of full access, with a free trial where offered. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel it in your Apple Account settings. Terms of Use (EULA): https://umbera.app/terms Privacy Policy: https://umbera.app/privacy