Can you describe the main stages of the software product lifecycle?

The life cycle of a software product includes several main stages:

1. Requirements analysis — gathering and clarifying customer or user requirements.
2. Design — creating the architecture and design of the system.
3. Development — writing code and implementing functionality.
4. Testing — verifying functionality, finding and fixing bugs.
5. Deployment — deploying the product in the production environment.
6. Maintenance and support — fixing bugs, updates, improvements.

In the context of an iOS application, the life cycle also includes stages of launching and terminating the application, managing states (active, background, etc.), which is important to consider during development.