Ritmik Sayma is an Android application developed by SanatX Bilişim that aims to teach young children how to count forward by ones, twos, fives, and tens. The app is suitable for preschool and elementary school students, and it is available for free.

The app's interface is simple and easy to navigate. It features colorful graphics and engaging animations that make the learning process enjoyable for children. The app includes four different counting modes, each of which focuses on a specific counting sequence. The app also includes a quiz mode that tests the child's knowledge of the counting sequence.

Overall, Ritmik Sayma is a great educational tool for young children learning how to count. It is easy to use, engaging, and helps children develop their counting skills in a fun way.