Blackmart is one of the best stores to download Android apps and games for free.
Blackmart Alpha allows you to download for free any paid application available on their servers. The application has an excellent user interface that lets you search and find apps and games easily. Although the downloads are not the fastest, they are usually very stables.
Blackmart also has filters that allows you to sort applications by name, size, price, date and value and gives you the ability to uninstall applications and make a backup of them.
Download Blackmart Alpha