Akelius Languages is a free Android application developed by Akelius Language Online gGmbH. It falls under the Education & Reference category and provides a playful and comprehensive approach to learning nine different languages. The app is designed to cater to learners of all ages and levels, providing parallel learning methods that respond to various learning styles.

With Akelius Languages, you can choose from a variety of learning methods, including lectures, games, songs, guessing, math, and grammar. The app also offers state-of-the-art pedagogy to help develop your communication skills. What's more, the app doesn't require any previous language knowledge, making it perfect for beginners.

The app also allows you to test and track your progress on your language learning journey with several tests. You can even use the application offline by downloading the content and learning independently from any WiFi or mobile connection. Overall, Akelius Languages is an excellent language learning app that provides a comprehensive and playful approach to learning multiple languages.