Matematika 4 Kurikulum Merdeka is a free Android application from Linear Studio Apps that provides access to the Math textbook for students in the fourth grade. The application is based on the book provided by the Kemdikbudristek, which can be distributed for free to the general public. The app is designed to allow students to learn anytime and anywhere.

The app comes with several useful features, including links between chapters and sub-chapters, responsive page views that can be easily zoomed in and out, and a search function to find specific pages. The minimalist landscape view is perfect for reading and studying.

The app covers various topics of Math, including Counting Numbers up to 10,000, Fractions, Patterns of Images and Numbers, Measurement of Area and Volume, Flat Shapes, Pictograms, and Bar Diagrams. The app is an excellent resource for students to learn and revise Math concepts in a fun and interactive way.