Which aspects of development do you find most challenging and difficult?

The most challenging aspects of iOS development for me are:

• Memory management and performance optimization, especially when working with large data volumes or animations.
• Asynchronous programming and proper use of multithreading to ensure UI responsiveness.
• Working with new frameworks and iOS updates that require continuous learning and adaptation.

For example, sometimes it's difficult to correctly organize the interaction between ViewController and data model to avoid memory leaks and ensure a clean architecture.