Who comes out top in the battle of the super-fast delivery apps? Credit: Heathcliff O'Malley First it was next-day delivery. Then followed same-day delivery, and, not long after, same-hour delivery. But a grocery delivery in under 15 minutes – is this truly possible? And, more to the point, do we really need our goods quite so urgently? Apps promising fresh groceries delivered by bike in 15 minutes or less have sprung up quicker than you can say Weezy or Getir – or indeed any of the other snappy monikers printed on the cube-shaped backpacks that whizz around the capital, strapped to the back of a cyclist courier.