React Native does not ship native HTML inputs, so the simple register pattern from the web does not carry over as is. React Hook Form solves this with the Controller wrapper, validates forms declaratively through a Zod schema, and keeps re-renders on mobile devices as low as possible, even for complex, nested forms built with useFieldArray.
Embedding a WebView into a React Native app looks at first like the simplest way to show hybrid content such as a checkout page or a CMS-driven help center. But only a well thought out bridge between native app and web content via injectedJavaScript and postMessage, combined navigation control, and consistent hardening against open redirects decide whether the integration stays secure and performant.