Chart.js - Easy, object oriented client side graphs for designers and developers.
GoCo Team Feedback - Get your startup more aligned & engaged with better 1-on-1s
D3.js - D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS.
BitterWorld - Share your true feelings on BitterWorld and feel better
Google Charts - Interactive charts for browsers and mobile devices.
YOU app - Gently nudges people into healthier daily habits