However, as awesome as RAW is, it’s important to know RAW isn’t a magic “enhance” button. Some of our users sometimes reach out with confusion about their RAW images looking worse than a regular capture from the stock camera app. It’s helpful to understand how a RAW file is fundamentally different than JPEG, to fully understand the tradeoffs.
If you want to understand what it means to shoot RAW file format on any camera; go read this article. The dynamics of shooting RAW on iPhone or any other professional camera are more or less the same and Sebastiaan de With does a great job explaining this.