alt Hacker NewsYes. Smartphone vendors and CC prefer that you use contactless rather than a physical Clipper card, then they have data on your transit use, also the CC network gets transaction fees.
FYI there was a very informative recent panel episode of Forum: "KQED Investigates Botched Clipper 2.0 Launch" (8/24/2026, audio + transcript)
> KQED’s Azul Dahlstrom-Eckman joins us to talk about his investigation into what went wrong. Clipper 2.0 – a revamp of the payment system used across the [Bay Area] region’s 22 public transportation systems. The new version was supposed to allow seamless rides between systems and coordinate discounts and other programs. But..."
https://www.kqed.org/forum/2010101915014/kqed-investigates-b...
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I do use a contactless Clipper card, on my phone. I don't think this bit is relevant: getting Visa to correlate transactions is probably a lot easier for Waymo to get done than integrating with Clipper to see if you've ridden transit in the past two hours. That's the same if you use a physical card or one on your phone.
I'm also a fan of dedicated stored-value cards (they're generally much more robust during network or backend system outages), but I can really see the point of offering both in cities like New York or San Francisco.
Tourists trying to tap their credit or debit card and then arguing with the bus driver for a while, holding everyone up, used to be a quite common sight in SF.