Title: Persistent iOS App MFA Loop – Browser Login Works – Plus Subscriber
Hello,
I’m hoping someone from the engineering or authentication team can take a look at this, as the issue has been unresolved for several days through standard support channels.
I am a ChatGPT Plus subscriber and rely heavily on mobile access. At the moment, I am unable to use the ChatGPT iOS app due to what appears to be an MFA loop.
Here is the situation clearly:
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I can log into ChatGPT successfully via browser (desktop and mobile Safari).
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When attempting to log in via the iOS app, I receive the message that MFA is required.
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I receive valid OpenAI SMS verification codes.
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However, the iOS app never presents a UI field to enter the verification code.
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The login flow resets and loops.
This is not a password issue, not a lost authentication method, and not a browser problem. The issue is isolated to the native iOS app.
I have already:
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Reinstalled the app
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Cleared credentials
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Removed and re-added authentication methods
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Attempted passkey setup
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Followed all instructions provided by support (which appear to apply to browser login, not the iOS app flow)
Based on the behavior, this appears to be a server-side mobile authentication session or device-binding issue specific to the iOS client.
I would greatly appreciate escalation to someone who can invalidate mobile auth sessions and allow clean re-enrollment on iOS.
Thank you for any help or direction.