The State of Charge YouTube video that covered the announcement and visited a site in McKinney, TX indicated it did need the Walmart app[0].

Sigh. Plug and pay charging is so much better. It’s not like this is a Tesla only feature. Ford has thousands of chargers beyond SuperChargers that just work for plug and pay.

[0]: https://youtu.be/_UIVp8Upvj8?si=eX9EMWKi6sho4DnT

My guess is that this will be less of a problem for Walmart than it is for other EV charging networks because with the other networks all their app is good for is EV charging at their network.

With Walmart the EV charging is just going to be another thing managed from the Walmart app. I'd guess that a significant majority of people who will be wanting to charge there already use Walmart for other things and have the app.