SQL Pro Free is an educational app designed for Android users, providing a robust guide to SQL that caters to both novices and experienced users. It includes a variety of features such as a basic introduction to SQL, language syntax, data types across multiple database systems (MySQL, SQL Server, Oracle, MS Access), and both basic and advanced SQL concepts. The app is structured into easily navigable categories, allowing users to quickly find relevant information.

In addition to the fundamental concepts, SQL Pro Free offers a detailed reference for SQL functions, complete with descriptions, parameters, and practical examples. Users can search for specific functions, making it a valuable resource for learning and applying SQL in real-world scenarios. While the app does include advertising, a paid version is available for those who prefer an ad-free experience.