Preschool kids : Number & Math is an Android application developed by Genius Games. This education and reference app is designed for preschoolers to learn numbers and basic math skills. The app offers a variety of exercises and activities that help children learn counting, addition, and subtraction in a fun and interactive way.

The app features graphic images that show objects for counting and help children learn numbers. The exercises with addition and subtraction are simple and easy to understand. Children can find the number of images and add or subtract them to get the answer. The app provides immediate feedback, showing "Correct" for the right answer and "Wrong" for the wrong answer. The clock learning activity is also included, along with additional activities that cover ascending, descending, finding missing numbers, and identifying the smallest and biggest numbers.

Overall, Preschool kids : Number & Math is a great app for preschoolers to learn and practice basic math skills. The app is free to download and use, making it accessible to all.