Frequently Asked Questions

Please check the FAQ first. If your question is not here or you wish to request for new features or to feedback, then email - Thanks.

What are the pre-requisites?

The web sensor api is ONLY supported by Chrome browsers on Android phones which have 2.5 billion monthly active devices in 2019.

How to check that it is working?
  1. Click Start
  2. Shake the phone - data will be displayed on screen to show it is recording
  3. Click Stop - graph of data will be displayed
  4. Click Save to save it to your Google Sheet (you must Google Sign-in first) The file name is automatically generated Sensor Data YYYYMMDDhhmmss UTC - view sample Google Sheet

What is the sampling rate?

50 Hz

What sensor data is read?

Accelerometer - timestamp, x, y, z

How is the timestamp calculated

From the web, it is the awake time in nanoseconds since the last boot (comparable to SystemClock.uptimeMillis()), and not time since Unix epoch.

Where is the data stored?

It is stored in the user's Google Sheet. No data is stored in our servers. Google sheets cloud-based architecture enables you to collaborate with anyone, anytime, anywhere.

What is stored in our servers?

Nothing.

Are you able to access the user's other Google files?

No. Only access to files created by our website. File authorization is granted on a per-user basis and is revoked when the user deauthorizes the site. As it is a site and not an installable app, we are unable to open any other files.