How to disable recaptcha verification in phone Authentication with firebase for ios flutter

[satyamraj123]

I am working on a flutter app which has a registration flow like this.

-The user selects their Google/Apple id depending on the device
-Then they enter their phone number to get an SMS
-Then they enter the SMS code to verify it
-Then they enter their personal info and enter into the app

This is the flow on Android but on iOS after entering the phone number the in-app browser open com.{my_project_name}.firebase website. It appears for 2-3 seconds and says that verifying for bot(no google captch appears). And then it redirects me back to app. I want to disable it as it results in bad user experience.

I enabled silent notifications by generating APN's authentication key and uploading it to firebase.

There might be something that I missed but can't find what is it.

Please help me solving this issue and thank you for giving your time.