Bilingua - Bilingua: your language exchange app & learning companion.
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.
Livemocha - Livemocha is a web application that allows you to learn over 15 foreign languages free of cost.
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.
Mondly - Learn 33 languages in 500 bite-size lessons and 14 conversational modules.
Mango Languages - Mango Languages is a free to use application that is specially made for those want to learn a new language on the go with hands-free feature and offline accessibility.