Libero Vocab
An app for Android to practice with vocabularies in the KVTML format.
... of "Vocab Drill", by Károly Kiripolszky and Matthias Völlinger. This application makes use of the KVTML format developed by the KDE Education Project. Libero Vocab is not a vocabulary in itself, but allows you to use pre-existing vocabularies: if you already have a vocabulary, the app provides the functionality you need to practice with it. Vocabularies can be self-produced or taken from websites such as:
https://edu.kde.org/contrib/kvtml.php
For the installation take a look at the Wiki page.