> why an app like this would only support sign in with Google.
To be fair, they developed an iOS app first and there currently lacks Android support. The Google Sign-in could just be a matter of prioritization and it's easier to implement this boilerplate at Google.
To be fair, they developed an iOS app first and there currently lacks Android support. The Google Sign-in could just be a matter of prioritization and it's easier to implement this boilerplate at Google.