The Online Thesaurus by Livio is a free multilingual tool that searches for synonyms of a given word in 12 languages, including English, Italian, French, Czech, Danish, German, Greek, Hungarian, Polish, Portuguese, Spanish, Romanian, and Russian. This app is designed to help users improve their vocabulary and communication skills by providing them with an extensive list of synonyms for any word they search for.

The app features a user-friendly interface that allows users to easily search for words, bookmark them, and view their search history. It also has a random search button that shuffles through words and themes with user-defined text color. Moreover, the app allows users to backup and restore their bookmarks data on local storage and on Google Drive, Dropbox, and Box clouds (if installed and configured with the user's account). Additionally, the app has a camera search feature via OCR Plugin, which is only available on Android 4.2 or later devices with a back camera. The OCR Plugin can be downloaded from Google Play.