Wiktionary Reader is a viewer app of Wiktionary, a comprehensive Web-based multilingual free dictionary. With this app, users can easily access and search for definitions, translations, and other information from the vast database of Wiktionary.

The main feature of Wiktionary Reader is its full-text search functionality. Users can enter keywords and the app will display a list of results related to the search query. This makes it convenient for users to quickly find the information they need.

Another useful feature of the app is the ability to change the target language. By tapping the "Select Language" button, users can switch between different languages to view definitions and translations in their preferred language.

For those looking for a random word or phrase to learn, the app also provides a "Random" button. Tapping this button will display a page of items at random, allowing users to discover new words and expand their vocabulary.

In addition, the app offers a bookmark feature. By tapping the "Bookmark" button, users can save their favorite words or pages for easy access later. The app also includes a history page, where users can review their search history.

Overall, Wiktionary Reader is a valuable tool for anyone who wants to access a multilingual dictionary on their iPhone. It provides a user-friendly interface and convenient features for searching, browsing, and bookmarking words and definitions from the extensive Wiktionary database.