This is a "Share to Download" plugin, and works for Facebook, Google+ and Twitter.

GROW YOUR SOCIAL MEDIA FOLLOWERS NOW WITH SUPER SOCIAL CONTENT LOCKER!

Social Content Lockerz shortcode plugin allows you to automatically hide any content to users until they share it on Facebook, Twitter and/or Google

Helps increase social media presence by asking visitors "to pay" for your content with a tweet, plus one, or a like.