TestBox - Test drive your software options before you buy
HotStock - HotStock is an all-in-one real-time product tracker for you that allows you to find the right product, exclusive deals, and discounts from all the major online stores.
Appsolite - Evaluating software is laborious, time consuming and riddled with a lot of guess-work.
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AlternativeTo - AlternativeTo lets you find apps and software for Windows, Mac, Linux, iPhone, iPad, Android, Android Tablets, Web Apps, Online, Windows Tablets and more by recommending alternatives to apps you already know.
Wikibuy - Find lower prices at other sellers while you shop on Amazon