List of features:
PayPal Express Checkout REST API (latest version)
File uploader with file thumbnail, name, price, type, screenshots, main file and mores...
File downloading after payment
Download link expires after 48 hours of purchase (can be modified)
Purchase receipt on Email (Buyer's PayPal Email)
Edit items, site name, profile picture, about page, all site settings and mores...
Protected files & folders
Free Download system
Paid with Diamond Credits system
Diamond Credits system
Login/Register/Lost Password system
Multiple roles Client, Vendor, Admin
Approval and management of users and vendor requests
Formated number's, security scripts, php email, disqus.com comments, automatic installation, code coded very neatly in the rules, and mores...