[krrose27]

Since you mention fresh:

https://fresh.amazon.com/dash/

It still requires a jump to the pc to order; but no reason they couldn't add a way to initiate an order from it. It's also a tad less privacy intrusive then echo.

[72deluxe]

Very interesting, thanks. A pity supermarkets here in the UK don't offer useful apps to do the same thing from a phone + barcode scanner.