Math Superstar Primary 4, developed by AC Digital Lab, is an Android app designed for fourth-grade students to practice math. The app is a comprehensive resource for students to improve their skills in various topics such as whole numbers, fractions, decimals, time, angles, area and perimeter, perpendicular and parallel lines, tables, and graphs. The app offers a user-friendly interface that is easy to navigate for students, with clear instructions and a clean design.

The app is free to use, making it an accessible option for students and teachers alike. The app provides a range of practice questions for each topic, helping students to build their confidence and understanding of the subject matter. Math Superstar Primary 4 is a valuable tool for fourth-grade students looking to improve their math skills and achieve success in the subject.