Visual Composer Icon tabs lets you add the tabs to your pages/posts. Icon tabs are fully responsive and looks nice in mobiles. You can add any VC Elements like forms, text, gallery etc in the tabs content.
CSS3 transition. The gallery thumbnail support retina, you can add lightbox or custom link to the thumbnail. See the screenshot. CSS3 transition (driven by animate.css, with 20+ transition options) for the popup notification.
Restaurant Finder is an Android app with PHP backend allows you to find popular restaurant near you. It have Admob support, FB, Twitter, Whatsapp sharing feature.
UnoSlider is a jQuery content slider plugin with an unlimited transition animations (really, unlimited!) and a wide range of a features like touch enabled, mobile optimized interface, animated layers, responsiveness and a lot of other features.