Onym Messenger vs Nitro Messenger

Onym is a private messenger built on one idea: your conversations are yours. END-TO-END ENCRYPTED Only the people in your group can read what's sent. Onym's servers never see your messages. NO PHONE NUMBER, NO EMAIL Your identity is a cryptographic key you own — not your contact info. Create one in seconds, and make as many as you like. NO CENTRAL SERVER Group membership is anchored on the Stellar network, not owned by us. There's no company account that can lock you out. START A CHAT WITH ONE LINK Spin up an encrypted group and share a single invite link. People join later without exchanging any keys. BRING YOUR OWN INFRASTRUCTURE Onym carries messages and media over open Nostr relays and Blossom servers. Use the defaults, or point the app at your own instances for maximum privacy. MULTIPLE IDENTITIES Keep contacts and chats cleanly separated. Switch between identities with a tap. YOU HOLD THE KEYS A recovery phrase restores your identity on a new device. Lose it and no one — including us — can recover it. Onym doesn't ask who you are. No accounts, no profiles, no tracking, no ads. Just private conversations you control. Built by people who think privacy is a right.

Nitro is a private messenger built on a simple promise: the server cannot read your messages. Content is end-to-end encrypted with a post-quantum hybrid ratchet, so your conversations stay yours — even against tomorrow's computers. WHY NITRO • End-to-end encrypted messages, calls and media — keys live only on your device. • Post-quantum hybrid encryption, not just classic crypto. • The server is a "dumb carrier": it routes opaque, encrypted envelopes and never sees content. • No ads. No trackers. No third-party analytics. Your address book is never uploaded. • Your identity is a @username — your phone number is never shown to anyone. FEATURES • 1:1 chat with delivery receipts. • Photo sharing — images are encrypted on-device before they ever leave. • Voice & video calls with the native call experience (CallKit). • Group chats. • On-device, encrypted history — losing the server never loses your messages. • App lock with Face ID. PRIVACY YOU CAN VERIFY Every chat shows an encryption indicator, and you can confirm a contact face-to-face with a safety number. Delete your account anytime from Settings — your identity and history are wiped from the device. Nitro is single-device by design: no desktop or multi-device surface to attack.