PowerSense is a powerful motion sensor logging tool that can track and record various sensor data on your iPhone and Apple Watch. These sensors include accelerometer, gyroscope, magnetometer, etc. The recorded data is stored as .csv files and can be then sent out via email, AirDrop to your Mac or upload to your linked Dropbox account.

You can configure the sampling rate to be from 1 to 100 Hz for phone. 50 Hz is fixed for watch.

From version 2.0 onwards, advanced features like multiple-file upload, data file compression, AirDrop transfer and Dropbox upload would be available in Pro version via In-App Purchase.

# iOS 10.0 and watchOS 3 are required.
# Continued use of GPS running in the background can dramatically decrease battery life.