Castro makes it easy to manage lots of podcasts, and enjoy the best episodes of all your favourite shows.

Duolingo is a platform that includes a language-learning website and app, as well as a digital language proficiency assessment exam.

Instapaper is a bookmarking service that allows web content to be saved so it can be "read later" on a different device, such as an e-reader, smartphone, or tablet.

We provide technology to power smarter cities, making them more sustainable, less congested, and more usable for humans around the globe. Add our SDK and provide door-to-door navigation all inside your app: citymapper.com/enterprise

Instagram is a social networking app that gives its users the ability to easily share pictures and videos with their friends.