Just Sensors

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.