Worst example I've seen is an app called Foodora here in Norway (like Uber Eats, Door Dash, etc). On the order confirmation page where you're following your ord

Worst example I've seen is an app called Foodora here in Norway (like Uber Eats, Door Dash, etc). On the order confirmation page where you're following your order status, following the driver on the map, etc, they would have video ads playing _uncached_. It was literally using like 1 MB/s of traffic continuously while you were checking the order page.