Demo apps
Open-source apps for the operations our customers run, from restaurant kitchens to logistics yards. Each one runs between an iPhone and an Android phone over Bluetooth, with no internet, accounts or server, and its source is on GitHub for you to start from.
Enterprise demo apps
Each app runs one real operation between phones in the same place, on the Offline Protocol SDK, with its source on GitHub.
- Restaurants Order Up Waiters' phones send orders to the kitchen display, and every order lands exactly once.
- Retail inventory Stock Sync Store staff share one live inventory and keep counting while out of range.
- Public sector OutageNet Field units and a command post coordinate an outage, then sync to headquarters.
- Logistics YardGate Drivers check in at the gate and the officer approves or denies on the spot.
- Live events Event Floor Staff dispatch and gate scanning for a venue, with duplicate tickets caught.
- Agriculture AgriMesh Field readings hop phone to phone to the farm office, then sync when online.
- Fleet yards DockHand Drivers check in and get a signed dock assignment, handed over phone to phone.
- Collaboration Cowrite Two phones edit one document with live cursors, end-to-end encrypted.
- Games Tic Tac Together A two-player game where stale and duplicate moves are ignored.
Built by developers
What developers have built on the SDK and shown on X and GitHub, each linking to the builder's own post or repository.
Built something? Tag @OfflineProtocol.
Radius A social networking app that shows who nearby is worth meeting, phone to phone. 
Mizan Alion X Obsidian folder sharing P2P data sharing without internet: an Obsidian plugin that syncs your folders. 
Gokulon X Shielded Zcash payment Private offline payments on-chain, between two phones in airplane mode. 
Satvikon X hopchat Offline smart home automation and intelligence, from an encrypted chat. Gokulon X
Mizan Alion X Obsidian folder sharing P2P data sharing without internet: an Obsidian plugin that syncs your folders. Gokulon X Shielded Zcash payment Private offline payments on-chain, between two phones in airplane mode. Satvikon X hopchat Offline smart home automation and intelligence, from an encrypted chat. Gokulon X - Heimdall Find a friend with no signal. Phones swap GPS over Bluetooth and Wi-Fi Direct, and a compass arrow points the way. Mizan Ali
- MeshWallet An Ethereum wallet whose phones relay signed transactions over a Bluetooth mesh until one of them is online. Om Lanke
- AI RAG Messenger A messenger with an on-device AI model that keeps delivering to nearby phones when the connection drops. Abhinov Chakraborty
- Web and mobile messaging A mobile app and a web client messaging each other through the mesh. Henrique Costa
Build the next one
Start from a demo's source, or let your coding agent scaffold a new app with the Offline Protocol MCP server.