Le mot du jour is a free mobile application available for Android users. This app is an excellent tool for individuals who want to improve their French vocabulary. It offers more than 900 words, including original, unusual, or less commonly used words, to help users enrich their vocabulary. For each word, the app provides its etymology, description, and sources, which makes it easier for users to understand and learn the word.

The app also offers many other features such as automatic word download, offline availability, integrated search, favorites, sorting, and filtering options. Users can also share the words they learn with others and track the number of unread words in the application icon. Additionally, users can make a one-time payment to remove all ads from the app and support the project.

The app requires permissions to access the network, display advertisements, check for new words during device startup, and enable in-app purchases. Users can find more information on the app and FAQs on the developer's website. Overall, Le mot du jour is a fantastic app for anyone looking to expand their French vocabulary and learn new words.