Exchange
Type an offer or a need in plain language. The on-device model turns it into a semantic vector, your phone gossips it to nearby peers, and the matcher searches the local graph for closed loops. Swipe to lock in.
Available at launch
Phones in the same room find closed barter loops of three to seven people — you teach, someone lends, someone else supplies you back. Matching runs on your device, sync runs over Bluetooth and Wi-Fi Direct, and every step is cryptographically signed. Nothing ever leaves the room.
Type an offer or a need in plain language. The on-device model turns it into a semantic vector, your phone gossips it to nearby peers, and the matcher searches the local graph for closed loops. Swipe to lock in.
Lend your phone's idle neural chip to nearby AI workloads — but only while it charges, stays cool, and sits on a network you trust. The hardware gate fails closed: if it cannot verify safety, nothing runs.
Solar inverters and smart relays on your home network report surplus and demand into the same mesh, so neighbors can balance energy directly — no utility middleman, no cloud dashboard.
"offer: Dart tutoring, two hours a week" or "need: a scooter on weekdays". A compact language model on your phone converts the text into a 384-dimensional semantic vector — no text is sent anywhere.
Nearby devices exchange signed intent records over Bluetooth LE and Wi-Fi Direct. Each record carries its author's Ed25519 signature; devices verify before storing. Duplicates are discarded automatically.
Your phone builds a directed graph — an edge exists where one person's offer satisfies another's need — and searches for simple cycles of 3 to 7 people. Rings are ranked by their weakest hop, because one unconvincing match collapses the whole loop.
Each participant signs a lock for their own part — nobody can lock anyone else in. When every hop is locked, the ring is confirmed. Mark it fulfilled when the exchange happens; reputations build from signed history alone.
Lives only in an embedded database on your device. There is no account, no cloud copy, no analytics pipeline. Deleting the app deletes everything.
A keypair generated on first launch and stored in your device's secure enclave. Your public key is your identity; the private key never leaves the hardware keystore.
Creating, locking, and fulfilling are signed operations in a conflict-free replicated log. Peers verify signatures before applying anything — a forged action from any device is simply rejected.
Bluetooth LE, Wi-Fi Direct, and your local network. Web clients pair with a phone through a QR code and a cryptographic challenge — an impostor bridge fails the handshake and is dropped.
Zero, structurally. There are no servers to pay for, so there is no pressure to monetize your data. The protocol runs on hardware you already own.
Full mesh node over Multipeer is built and ready, but not yet published — an iOS release must be built and signed on a Mac. Watch the repository for the TestFlight and App Store rollout.
Follow on GitHubFull mesh node over Nearby Connections. Install the signed APK directly — tap the file, then allow install from unknown sources when your phone asks. No store account, no gatekeeper.
Download APKA lightweight client that joins the mesh through a phone on the same Wi-Fi. Scan the QR code shown on any full node to pair.
Launch web clientThe Download APK is the arm64 build (~86 MB) — it fits virtually every phone made since ~2019. For an older 32-bit device or an x86 emulator, use the universal build (155 MB).
iOS apps install only through the App Store — that is
an Apple platform rule, not our choice. Every APK is signed with our
release key; before installing, verify the certificate SHA-256 with
apksigner verify --print-certs against the fingerprint in
SECURITY.md.
No. Devices discover each other and synchronize directly over Bluetooth LE, Wi-Fi Direct, or a shared local network. The protocol is designed for rooms, buildings, and neighborhoods — not data centers.
Only on your device, in a local embedded database. There is no server to send it to. Deleting the app deletes the data.
A closed loop of 3 to 7 people where everyone gives one thing and receives one thing: A teaches B, B lends to C, C supplies A. Direct two-person barter usually fails because needs rarely mirror each other; rings solve that mathematically.
A small language model runs on your phone and converts each offer or need into a semantic vector. Your device compares vectors it has gossiped from nearby peers and searches the local graph for closed loops. Every step happens on-device.
Every operation — creating an offer, locking into a ring, marking it fulfilled — is signed with the author's Ed25519 key. Devices verify signatures before accepting anything, so no participant can forge another's actions.
No. Version 1 is pure barter: goods, services, and time exchanged directly between people. There are no balances, no custody, and no payment processing.