Rosetta Stone - Rosetta Stone is the world's most popular software for learning languages. It is offered at a cost of just $169 when purchased outright, but it is also possible to purchase language programs in a subscription format that offers ongoing support.

MailMate - MailMate is an alternative email client that was designed for the macOS.

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.

Mailspring - Mailspring is a mail client for Mac, Windows and Linux.

Lingvist - Lingvist helps you take your foreign language skills to the next level with a broad selection of exercises and lessons.

Airmail - Airmail is a lightweight and lightning fast mail client for Mac.