I'd like a working prototype with minimum UI and feature, without any encryption. Two users A and B. User Stories below: User Story #1: Initially A and B are far away from each other, and each opens app in iPhone. - A writes a text content T1 - B moves close enough to A and receives T1 User Story #2 (symmetric to story #1): - B writes a text content T2 - A moves close enough to B and receives T2 Note: the app works without wifi or mobile network, as far as the phones support BLE. Users don't need to register for account or ask for each other's permission before connecting. More details: Is this project for business or personal use? Personal use for now, but the project can grow if the prototype goes well What information should successful freelancers include in their application? Source code with good readability. How soon do you need your project completed? Within a month