BBC News
By Robert Plummer
image captionWeezy was the first app-based rapid grocery delivery service to launch in the UK
"I'm amazed it hasn't been done earlier by some of the big supermarket chains," says satisfied customer Kiran Wylie.
"To be able to deliver supermarket-quality food within 10 minutes is very enticing."
The 28-year-old communications manager lives in Hackney, one of the London boroughs that form the new battleground of grocery shopping.
If you live in the right part of the country, you can now call on a whole raft of app-based systems that promise to bring you groceries within 10 to 15 minutes.