A few features exclusive to the native apps are listed here:
The native apps let you work with cookies directly. Unlike the Chrome app, no separate extension is needed.
The native apps come with a built-in proxy that you can use to capture network traffic.
The latest versions of the native apps let you send headers like Origin and User-Agent. These are restricted in the Chrome app. For more info on the new Postman Runtime, check our blog post.
The latest version of the native app also has a built-in console, which allows you to view the network request details for API calls.