Pocket Sense
Sensor Toolbox & Sound Meter
Pocket Sense turns the sensors already in your phone into a benchtop of measuring tools that works 100% offline. No account, no ads, and nothing you measure ever leaves your phone. Readings are honest estimates from your phone’s hardware — useful for comparing places and moments, not certified measurements — and you can apply your own calibration offset in Settings.
Key features
- Sound meter — live decibel reading with min / average / max and a threshold marker
- Light meter — illuminance in lux or foot-candles
- Compass — heading with a true-north option and manual declination
- Bubble level — surface and circular levels with angle readouts
- Vibration meter and magnetic field meter (in µT) for finding magnets, wires and metal
- GPS tools — coordinates, altitude, speed and accuracy as plain numbers, with no maps to download
- Record any meter into a session, review min / average / max statistics, and export sessions as CSV
Screenshots
Licensing
Pro is a one-time purchase of $3 — it unlocks session recording export to CSV. No subscription. Phone readings are estimates, not certified measurements.