Swaptions

Swaption's focus is on local buying and selling — the app uses your location to show you items for sale in your geographic location.
The app's interface is simple. It looks a lot like Pinterest upon first opening the app — images of items up for sale are listed in a vertical, image-heavy feed.
You can see everything all at once, or you can narrow it down using the colorful buttons at the top if you're looking for something like electronics or fashion. Or, you can use the search bar to look up a specific type of item.