It's set up a lot like Instagram, with photos and profiles ... you sell an item on Depop, you'll be prompted to set up your shop - this is essentially like setting up your profile.

This is a common tactic used by people selling second-hand items online, to prove that the photos were not stolen from another listing. "I just felt so violated," she says. Depop says train seat ...

Sylvie Mackower, 20, from London wasn't thinking about the environment when she set up an account on an app called Depop to sell on items she no longer wore. "I really just wanted to get rid of ...