What's the best Android app for teaching number recognition and basic counting to preschoolers?

Numberblocks World is an educational app that translates the popular TV series into a digital learning experience, focusing on foundational math skills for children aged 3 to 5. The app introduces number recognition and counting through a series of mini-games where kids interact with animated Numberblocks characters. For example, one activity involves tapping on Numberblocks to hear their corresponding numbers and see them combine for simple addition, reinforcing concepts like sequencing and quantity. Another feature includes puzzles where children match Numberblocks to groups of objects, helping them visualize numerical values in real-world contexts. This approach is particularly effective for holding attention spans, as the colorful animations and familiar voices from the show make learning feel like play. Users report that their children often request to use the app and show noticeable progress in counting abilities after consistent use. However, some reviews indicate that the free version contains advertisements and limited levels, which can interrupt the flow of gameplay. A few parents also note that the content might not challenge older preschoolers as much, but it remains well-suited for its target age group. Overall, the app serves as a reliable supplement to early math education, especially for families familiar with the Numberblocks brand.