The goTenna is a small cognitive digital radio. The companion mobile application we developed for it communicates with the goTenna’s firmware directly via Bluetooth Low-Energy and utilizes a DLE-STX-ETX packet protocol to interface with and send commands to the goTenna. Once paired, the user’s smartphone essentially becomes a peer-to-peer, off-grid communication tool that allows users to send and receive text messages and share GPS locations on offline maps regardless of access to WiFi or cellular service. goTenna initially commissioned App Partner to develop a straight Android port of their goTenna hardware’s iOS companion app. However when iOS production ran into issues, and their needs evolved App Partner was able to step-up and become a critical partner helping drive and accelerate their mobile development initiatives.