Successful digital products with "as little design as possible"

Dieter Rams has 10 Timeless Commandments for Good Design and one of the is "Involves as little design as possible" or seamless. I was wondering if you had good and examples of this principle for Product Hunt type of products. Here are a couple of examples from me: - Tunnelblick - Handy Mirror - Zapier or other workflow automation (functional part in the background)