It only launched in the UK a year ago, but is now the "UK's most-downloaded shopping app" according to The Times: https://www.thetimes.co.uk/money-mentor/consumer-rights/what...

Sure, not all of those downloads will have resulted in a purchase - but the same is true of Amazon.

The point is that Temu is takes the "masses of cheap crap" aspect of Amazon, and makes a virtue of it. It's effectively the Ryanair model - most people want cheap crap, so why bother with the last vestiges of Amazon-style customer service when you can ditch all that and be even cheaper and crappier?