Using native app widgets instead of webflow

We like to use android and iOS native widgets in flutter to make a custom login screen which matches our app design. I have done this but I had to give password grant type in dashboard which is recommended just for highly trusted applications. How can I make sure the app is highly trusted? which flow is most secure to achieve this? everywhere it is recommended to use webflow.
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Hey there,

As you’re building a mobile app, the PKCE flow is mostly recommended:

It’s used in our Android and iOS quickstarts. Also there are a few community devs building toolkits for integrating Flutter and Auth0 e.g.: