Originally created by Facebook, React is developer-friendly and boasts a strong community. Shared tools allow devs to build highly complex, high-performance user interfaces. And it offers speedy response to users’ input, making it ideal for real-time interfaces. One testimonial to how well React works: The web version of Facebook itself is built on it. And there’s a lot of stuff going on there, trust us.

React Native is another technology created by Facebook that uses the React framework but allows for work on mobile apps. It’s our exclusive native app technology of choice. JavaScript developers can leverage their existing JS and CSS knowledge when using React Native. The sweetest part of the deal: When you write a single app in React Native, you end up with two separate apps: one iOS, one Android.

Trying to develop an iOS app or an Android app by itself means doing everything twice. By using React Native, you get it done in one fell-swoop. That means double the bang for your buck, and that means a lot to clients.