Rumgr Rumgr is a mobile version of the classic garage sale. The app uses your location to find photos of goods that are available for sale nearby (we discovered a pool table, couch, guitar and Super Nintendo within 10 miles). Once you've found an item you're interested in buying, just tap on the photo and you can chat with the owner. And when you're ready to make an offer, you can sign in to the app and enter into a private chat. While we liked the app's simplicity (there are no descriptions of the items, only photos), we wish it had a few more features. Rumgr has raised $500,000 from investors including Zappos CEO Tony Hsieh.