How would you rate your knowledge and experience in native platform development on a scale from 1 to 5?

Assessing my knowledge and experience in native platform development (for example, Android in Java/Kotlin or iOS in Swift/Objective-C), I would rate myself a 3 out of 5. I have a basic understanding of native app architecture, experience creating simple applications, working with UI components, and interacting with system APIs. However, more complex topics such as performance optimization, deep integration with platform services, and advanced design patterns require further study.