Flutter developer to develop a iOS compatible code (Fixed price £20)

I have a Flutter app that does the following:
1. Enter web URL
2. Open webpage.
3. Enter login details in webpage.
4. Webpage generates a token (note: there are few APIs involved to get the token)
5. App gets the token and displays the token in app.

The above steps works in Android but not in iOS. Flutter app ready and working in Android but it don’t work in iOS.

As part of this project I want the Freelancer to make the my app work in iOS. I will provide working Flutter app in Android to interested and eligible candidate.

FYI: I do not have a apple account, so freelancer need to give their apple developer account for development.

Fixed price £20.