Posts, chats and private messages that travel from phone to phone over Bluetooth, and ride along with anyone nearby to reach friends who aren't. No internet, no servers, no sign-up, zero telemetry.
A serverless social network. Phones sync posts and messages directly over Bluetooth LE and relay
them for each other (store-and-forward), with no servers and no internet.
Native apps in Swift/SwiftUI/Core Bluetooth and Kotlin/Jetpack Compose/Room that sync in the
background on both platforms, with about 2–3 s delivery between phones.
Designed the gossip sync protocol and the identity model: Ed25519-signed messages and profiles,
challenge-response session authentication, and end-to-end encrypted DMs (X25519,
ChaCha20-Poly1305). Test vectors keep the iOS and Android crypto in agreement.
Built a hardware-in-the-loop test harness that drives real phones over USB to verify latency,
battery cost and multi-hop relay.