Sensor Viewer

Visualise the data from 3 of your phone's sensors
And adjust the sensitivity of the sensors to match the sounds, vibrations or magnetic fields you're measuring

For sounds:
See a sound wave for all sounds picked up by the microphone

For Vibrations:
See 3 line graphs showing the movements of the phone, 1 line per dimension (up/down, left/right, forwards/backwards)

For Magnetic Fields:
See a graph of the magnetic field your phone can detect, even if that's just your speakers or the batteries in some of your other devices

Supports Light Mode / Dark Mode
Supports Dynamic Text Sizing
Supports English, French, Spanish, German

Optional one-time in-app purchase available to remove ads permanently.
Purchases can be restored on supported devices using the same Apple ID
or
Optional auto-renewing subscription available to remove ads.
Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings.

Terms of use:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Privacy Policy:
https://salisburyapps.co.uk/privacy-policy-sensor-viewer/