Because your product is a program and some of the features are paid. So you have a screen for the user to start/manage/cancel their subscription? It doesn't hav

Because your product is a program and some of the features are paid. So you have a screen for the user to start/manage/cancel their subscription? It doesn't have to be some JS heavy thing, just that it will be a page in your app and you get autofill for free from the browser.