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GoodUI Evidence - People's A/B test results that show which UI ideas work best
Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.
Decidr - Make better decisions with quick A/B polls
Memrise - Learn a new language with games, humorous chatbots and over 30,000 native speaker videos.
PreFlight - Preflight is an Automated Web Testing tool. Allows everyone to automate Web UI tests.
Busuu - Join the global language learning community, take language courses to practice reading, writing, listening and speaking and learn a new language. Learn English with busuu's .