Wallapop is a virtual flea market that – just like the real thing – is a treasure trove of second hand and nearly new cars, bikes, vintage clothes, jewellery, etc.
They do not have a Windows phone app, but Spanish developer Miguel Diaz has set out to correct that deficit with his new, full featured 3rd party app for the service.
mPop claims to be the most complete 3rd party Wallapop app, offering the ability to search products, apply filters, create your own ads, chat with vendors, and more.
You can also see listings sorted by proximity, price, etc.
The app is free, but at present appears to support Spanish only.
Download the app from the Windows store here.
See screen shots of the app below: