Sharingbuttons.io - Quickly generate social sharing buttons with a tiny performance footprint.
CORA for iOS - Manage your social media automatically
Simple Sharing Buttons Generator - Share to Facebook, Twitter, Google+, and other social networks using simple HTML buttons
Buffer for Instagram - Plan, track, and analyze your Instagram marketing
Social Share Kit - Library of CSS/JavaScript social sharing tools
Postly - Turn your photos into REAL beautiful postcards. Available on iPhone, iPad and Android. Make friends and family smile with a postcard!