Smartphone need to be connected all the time?

[Mcgyver]

I wasn't able to find this in the manual.  Does the smartphone need to be connected to keep track of things like the mileage and DTE (distance till empty)  or is that info contained in the ODBII module until the next bluetooth connection with the smartphone?

[UltraGauge Admin]

The Mobile device need not be connected or present.  The UltraGauge Blue Adapter will capture and store data autonomously.   All data will be available to the mobile device upon its next connection to the Adapter