Social Share&Locker Pro is far away the best Social sharing plugin for WordPress. Was built to cover all the necessities and to gets more Shares into your website.
With a Social Locker module integrated, brings over the Social Network a bigger exposure and viral visitors.
Theres no other sharing plugin that has the depth of options that you get from this one. Multiple Sharing Buttons, Different Display showcases, Followers buttons, Social Content Locker. If you do need help with something, the Support Team is ready to answer on all your questions
put any number in license box i have checked it myself works fine.