Duolingo is a free to use language learning app, offering 95 courses across 38 distinct languages. It is the most downloaded education app in the history of the App Store and has previously been awarded Apple's iPhone App of the Year and Android's Best of the Best.

• Learners First - Our mission and reason for existing is to make sure everyone in the world has access to high-quality education
• Take The Long View - If it works in the short-term but hurts Duolingo in the long-term, it's not right. We make decisions that keep us moving toward our big goals
• Prioritize Ruthlessly - We have millions of learners and only hundreds of employees, so our work must focus on initiatives that have high return on investment. Make your time matter
• Ship It - For a good idea to become reality, it needs a plan and a sense of urgency. So go go go!
• Test Everything - We measure and test everything so we can make informed decisions based on data
• We Haven’t Won Yet - Until every person who wants to learn is doing so with Duolingo, we need to keep innovating, pushing the envelope, and learning ways to get better
• Strive For Excellence - To change how the world learns, we must do world-class work. From the people we hire to the features we ship, we never settle for just okay
• All For One, One For All - We stay engaged and make choices that benefit the greater good-because Duolingo's success is our success
• Be Candid And Kind - We build things together with transparency and care for each other. We offer feedback compassionately but with excellence in mind, and receive it openly and as an opportunity to grow

Total funding: $183.3m