I never tipped Uber drivers, but I stopped using Uber before they added the option to tip through the app. On Lyft, I've always tipped ~15% if the car was clean

I never tipped Uber drivers, but I stopped using Uber before they added the option to tip through the app. On Lyft, I've always tipped ~15% if the car was clean and the driving seemed safe, often more for <$10 rides. From what I've read, it's not easy to make a good living driving for Uber/Lyft, so adding a bit of a tip doesn't bother me too much. Sometimes I take a regular cab home from the airport because the Port Authority has (seemingly) intentionally made using app-based services as inconvenient as possible. At least now everyone has Square for credit card payments, but the cab drivers often have the minimum automatic tip set to 25% (or even 30%!) so I have to take the time to manually enter something more reasonable. I'm sure they get a significant number of passengers who are in a hurry and can't be bothered to do so.