React Native has revolutionized mobile app development by enabling cross-platform compatibility with a single codebase. However, a common challenge developers face is the need to frequently update the UI without submitting a new app version to the app stores. This is where JSON-based dynamic UI comes in.

The Context API in React Native provides a way to pass data through the component tree without having to pass props down manually at every level. It's particularly useful for sharing stateful data, such as theme preferences, user authentication status, or language preferences, across multiple components in an application.

Redux is a prevalent JavaScript library that has been widely applied to the management of state on the web. It contributes towards more predictable state container architecture and makes it easier to understand and debug application state.