If your account allows you access to the acceleration data collected from the phone then you will see this icon on the My Surveys page 

. Click this icon to view the Acceleration Data Table 

The table lists samples in reverse chronological order, i.e. starting with the most recent. Due to the high sampling rate these tables can get large very quickly. So you can use the Fetch Lines tool to view only the lines you currently need. Enter the starting line number and the number of lines you wish you see in the table and press Fetch Lines.

Timestamp / Date-Time: This is the time the sample was taken in UTC to the millisecond. 

X, Y, Z: degree of acceleration in each plane in g