PacketMessage vs OffNet Chat

PacketMessage fully supports FX.25 forward error correction and AX.25 bit-flip error correction. Send reliable messages over software TNC or KISS TNC interfaces. Decentralized solution, messages travel directly over RF via your radio. PacketMessage is intended to be used by licensed amateur radio operators. A valid amateur radio license, assigned callsign, and a compatible radio are required to send and receive messages. This app does not function as a standalone messenger.

OffNet Chat is a private messenger that works in places other messengers can't — and collects nothing, anywhere. NO SIGNAL? NO PROBLEM. At a festival, on a flight, hiking off-grid, or when the network is down: OffNet Chat sends messages directly between iPhones over Bluetooth and peer-to-peer Wi-Fi. Phones running OffNet Chat can quietly pass messages along for each other, so your words can hop through the crowd to reach a friend across it — and every hop only ever carries scrambled data. FAR APART? STILL PRIVATE. Turn on the internet bridge and message friends anywhere in the world. Messages travel as anonymous, end-to-end encrypted parcels through rotating mailboxes that can't be linked to you — no servers of ours, no accounts, no metadata trail. NO ACCOUNTS. NOTHING COLLECTED. There is no sign-up. Your identity is a cryptographic key created on your phone, and it never leaves your phone. We have no servers, no analytics, no ads, no tracking — we couldn't read your messages or sell your data even if we wanted to, because we never have either. EVERYTHING YOU EXPECT FROM A MESSENGER • Text, photos, and voice notes — all end-to-end encrypted • Photos send instantly as previews, then upgrade to high quality over Wi-Fi, Bluetooth, or the bridge • Delivery ticks and icons showing which path each message took • Background notifications that decrypt privately on your device • Profile photos that sync to your friends automatically ADDING FRIENDS IS EFFORTLESS • Nearby: one of you scans the other's QR code — the other phone gets a simple accept prompt • Far away: share a one-time invite link over any app you already trust • Verify any friendship in person later with safety codes, like the pros do YOU'RE IN CONTROL • Three transport switches — Bluetooth mesh, Wi-Fi, internet — each one yours to flip • Block anyone, with a choice: notify them, or block quietly so they learn nothing • See exactly how much you've sent today • Delete your identity and every trace of your data, irreversibly, any time HONEST ENCRYPTION Modern, audited primitives from Apple's CryptoKit: Curve25519 key agreement and ChaCha20-Poly1305 encryption, end to end. Relay phones and the optional cloud mailboxes only ever see ciphertext. OffNet Chat does not yet implement forward secrecy (it's on the roadmap) — we'd rather tell you that than overpromise. OffNet Chat asks only for the permissions it visibly uses: Bluetooth and local network to reach nearby phones, camera to scan QR codes, microphone for voice notes you record, and notifications. Your words, your phone, your business.