HeatFi

HeatFi is an iPhone AR app that maps Wi-Fi coverage indoors. It uses ViroReact and ARKit to track the phone as you walk a room, records signal strength along that path, and draws a top-down heatmap of strong and weak spots.

How it works

• ARKit tracks the phone in a room and samples positions as you walk
• Each sample records Wi-Fi signal strength at that location
• A top-down heatmap shows coverage, dead zones, and the walking path
• A custom Expo development client ships the native AR code; Expo Go cannot run it