I gave up using postman a while time ago because I was thinking that they had not an app outside the Chrome. I started using insomnia(https://insomnia.rest/) and I am satisfied
Exactly the same experience here. Postman always felt a little laggy and the in-app pushing for premium features was getting annoying.
Insomnia does everything I want it to do and does it quickly.
Developer of Insomnia here, and I'd just like to say that it makes me happy to see people in the wild are enjoying the app! Oh, and there are some big, fancy, and awesome things coming ;)