BookMap is a specialized trading platform that provides advanced visualization of market depth, order flow, and liquidity. It's popular among day traders and scalpers. Here's how to look for coupon codes and discounts for BookMap:
MobileXpression is a market research application, run by VoiceFive, Inc., a Comscore company, that collects data on mobile internet usage and rewards users (panelists) with gift cards or other incentives. It's available for both Android and iOS devices.