3. Sınıf Test Çöz Tüm Dersler is an Android app developed by TMD Apps for 3rd grade students. It is an online test application that provides tests, notes, and video lectures for the subjects of Mathematics, Turkish, Science, Social Studies, and English. The tests are categorized according to the topics and units, and after solving the tests, users can view their statistics to identify their weak areas.

The app also features a "pen" icon for solving questions and displays the correct and incorrect answers, the total score, and the time taken to complete the test. The app allows users to view their success rate in each subject and unit and highlights the areas where they need improvement. The app does not ask for any personal information and is suitable for children. Users can remove ads and delete their data from the app anytime they want.