The app has recently started signing me out randomly, even in the middle of an order. This would be problematic if it were to happen in an area with weak signal. This is a major issue with the app itself. Also, with gas surpassing $2.00/L, it's unacceptable to allow anyone to pay less than $4 to the driver without tipping. Most orders I see are not worth it unless you're just doing it for fun. Most customers don't understand that not tipping means their order goes to waste.