I can’t log into McDonald’s or Whataburger accounts on new iPhone 14 Pro max

Mssrod1 wrote:

i have McDonalds and Whataburger apps on iPhone. I got a new iPhone 14 Pro Max but when I try to open the MD and Whataburger apps, they insist on logging in with my Facebook account which is what was linked on prior phone. But instead of opening established account, the apps try to set up a new account with a different email that IS NOT associated to my Facebook account. I can’t log into the apps using email because it sends it back to the Facebook verification.

None of those are Apple's app or issue, contact each app developer or look at their help forum to fix your issue.