Transparent Language Online is a mobile app that allows users to take their language learning anywhere. The app requires activation with a Transparent Language Online account. The platform offers over 100 languages, with new languages continually being added.

The app features an extensive English collection, including materials for speakers of over 25 languages, an intermediate-level immersion course, and more. Additionally, the app includes alphabet lessons to help learners get started, and supplemental vocabulary to build proficiency in useful words and phrases.

Users can work their way through core skill-building activities that improve their listening, speaking, reading, and writing abilities. The app also includes a smart insight and review system, which tells users how much they have learned and when it is time to review. Overall, Transparent Language Online is a comprehensive language learning platform that is accessible on-the-go.