ARANIO

ARANIO is a marketplace where second-hand items are bought, sold and swapped. When a user posts a listing, the Swap Radar ranks matching listings by category fit, swap preferences, value proximity and distance; if both sides want each other's item, the listing gets a "Perfect Match" badge. While making an offer, a balance bar weighs the total value on each side and suggests settling the difference in cash. Live on Google Play, together with an admin panel and a landing site.