You’ll start to see fresh newsletters as they’re released right on the Stoop homescreen. Tap one to read it.
You can archive an email by tapping the small box on the bottom of the screen, and move forward or backward through newsletters by tapping “Prev” or “Next” at the bottom of the screen.
Tap the menu button on the top-right of the screen to flag a newsletter to read later (it also syncs with popular read-later apps like Instapaper and Pocket if you pay $10 per year for a premium version.) Saved issues can be found on the home screen if you tap the bookmark icon. You can save up to 10 old newsletters for each one you subscribe to in the free version, which I found to be more than enough.
You can also sign up for paid newsletters. Stratchery, for example, costs $10 per month or $100 per year. Stoop takes you right to the newsletter’s website where you can enter in your details for a newsletter you pay for.
Finally, if there’s an option in Stoop to easily share a newsletter, I can’t find it. But most newsletters have an option to open in a web browser, which you can use to share to social networks or via email to anyone you want. It’s a feature I wish was more native in the application, or easier to find.