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.
Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
Memrise - Learn a new language with games, humorous chatbots and over 30,000 native speaker videos.
Mailbird - Mailbird is the best email client for Windows 7, 8 and 10
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 .
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.