Just Sensors

Turn your iPhone into a scientific instrument! Access 24+ sensors with beautiful visualizations, data recording, and export. Discover what your device can really do.

Just Sensors. Nothing more, nothing less.

Your iPhone is packed with sophisticated sensors — accelerometers, gyroscopes, barometers, Bluetooth radios, and more — all working silently in the background. Just Sensors brings them to life with beautiful, real-time visualizations.

▸ EXPLORE 17 SENSORS

Motion Sensors • Accelerometer — Interactive bubble level showing forces in real-time • Gyroscope — Watch rotation rates with smooth visualizations • Magnetometer — A digital compass with magnetic field strength • Barometer — Track atmospheric pressure and relative altitude • Device Motion — Visualize pitch, roll, and yaw with an animated 3D cube • Pedometer — Count steps, distance walked, and floors climbed

Location • GPS — View coordinates, altitude, speed, and course on a live map

Audio & Light • Microphone — Visualize sound levels with a live waveform and dB meter • Light Meter — Measure ambient light in lux using your camera

AR Sensors (Pro devices) • LiDAR Scanner — Measure distances and visualize depth data • Face Tracking — See 52 facial blend shapes detected in real-time

Device State • Proximity — Detect when objects are near the screen • Battery — Monitor charge level, state, and thermal condition • Orientation — See portrait, landscape, face-up, face-down • Brightness — Track display brightness levels • NFC — Read NFC tags and view their data • Bluetooth Scanner — Discover nearby BLE devices

▸ BLUETOOTH SCANNER

• Discover nearby BLE devices in real-time • See signal strength (RSSI) for each device • Identify manufacturers using official Bluetooth SIG data • View advertised services and UUIDs • Switch between feet and meters for distance estimates

▸ SETTINGS & DEVICE INFO

• Switch between US Standard and Metric units • View all app permissions at a glance • See detailed device information — model, memory, storage, screen specs • Quick access to iOS Settings to manage permissions

▸ BEAUTIFUL VISUALIZATIONS

Every sensor gets its own tailored visualization: • Interactive bubble levels for motion data • An animated 3D cube for device orientation • A smooth compass dial for magnetic heading • Elegant gauges for pressure, light, and brightness • Live waveforms for audio • Device list for Bluetooth with signal strength • Depth views for LiDAR • Face mesh overlays for TrueDepth

▸ LIVE PREVIEWS

See sensor data at a glance — the home screen shows live mini-previews for every sensor, so you know what's happening before you tap.

▸ RECORD & EXPORT

Capture sensor data over time and export it for analysis: • Record sessions from any sensor • Export to CSV for spreadsheets • Export to JSON for developers • Share directly to Files, email, or other apps • Review and manage past recordings

▸ DESIGNED FOR EVERYONE

Whether you're a developer debugging motion controls, a student learning about physics, a researcher collecting data, or just curious about your device — Just Sensors makes it easy.

• Clean, dark interface with vibrant accent colors • Haptic feedback for a tactile experience • Choose your preferred measurement units • Works offline — no internet required • Privacy-focused — your data stays on your device

▸ SMART SENSOR HANDLING

Just Sensors gracefully handles hardware differences: • LiDAR features require iPhone 12 Pro or later • Face tracking requires devices with Face ID • Sensors that need permission show tap-to-activate previews • Unavailable features are clearly indicated

No fluff. No bloat. Just Sensors.