This app connects to our custom capacitive sensors via Bluetooth Low-Energy V5.0. For iPhone/iPad/Mac/Apple Watch, the visualization of the connected sensor's normal force, shear force, and proximity will be shown upon user's selection. For iPhone/iPad/Mac, the raw readings can be logged as a CSV file to iOS Files App or macOS Downloads folder. For any question, please contact the developer at gaojian@alumni.ubc.ca.