I'm very conflicted about tipping on Amazon prime now. I read an article a while back about how some gig economy companies will use the tip to cover the salary, but perhaps that was before companies got in trouble for doing that.
So I've put this somewhere before, but, a refresher is always good. Amazon prime now drivers made(6 months ago)/make 18 dollars an hour(this could have risen when amazon changed all normal employee rates to 15 an hour. They use their own vehicles, they pay for all their gas, insurance, etc. None of this gets reimbursed by Amazon. They are hired as contractors.
I understand the trepidation, Amazon is very good about the tips being paid out though. I however refuse to tip in the app or on the browser. You want to make sure the driver gets the tip? Cash is king.