Çözüm Bende is a free educational app developed by OrbimSoft for Android devices. The app allows you to access the solutions of the questions in the 3D series books of Çözüm Yayınları, making it an excellent reference tool for students.

Using the app is easy and straightforward. If you have the book, simply scan the QR code and select the question whose solution you want to track. Alternatively, you can choose your book, select the test, and then pick the question you want to see the solution for.

The app is a useful resource for students who want to check their answers or learn how to solve problems step-by-step. The interface is user-friendly, and the solutions are accurate and easy to understand. Overall, Çözüm Bende is a well-designed and helpful app for students studying with the 3D series books of Çözüm Yayınları.