This may not be true of all such apps, but I open mine and it subdivides trips by every stop (including stop signs and lights). Then when you don't do it for 3-4 days, you have 50 trips you need to click through.

My time was worth more than the savings they offered. In fact, it was insulting.

I should not have to spend 3 hours per month categorizing my trips for their data mining expedition for a $30 discount (especially not one that evaporated at the next renewal, because I wasn't safe enough). That app was rigged.