Duolingo - Duolingo is a language learning app that encompasses reading, writing, listening, and speaking. It is free and can be used on desktops, iPhones, Androids, Windows phones. It does not offer: Arabic or Chinese
Babbel- Babbel is app that allows you to pick which lesson to study and can be used on desktops, iPhones, and Androids. The basic lessons are free with in-app purchases available for full access. It does not offer: Arabic, Chinese or Swahili
Busuu - Busuu has four main features; vocabulary, dialogue, quizes, and conversations. It uses flashcards as the primary way of teaching a new language. It can be used on desktops, iPhones, and Android. It does not offer: Swahili
Mango Language - Mango Languages has all the languages taught at Baylor and can be used on desktops, iPhones, and Androids. The first few lessons are free, for the upgrade you can either pay or check to see if you local library has a Mango account and get it for free. Mango focuses on practicing conversations that could be applicable in real life.