Practice Writing English ABC and 123 is an educational app designed for Thai preschool and young children to learn to write correctly and more efficiently. The app offers four writing exercises, which include writing uppercase and lowercase English alphabets with corresponding sounds, writing Arabic numerals from 1 to 9 with corresponding sounds, and practicing writing without letters or numbers but with easy-to-follow lines.

The app features an easy-to-use interface that allows users to drag and touch the letters and numbers on the screen. Users can also enlarge the letters and numbers by selecting the pencil tool, which offers three font sizes. Additionally, users can change the color of the letters and numbers as desired and erase and rewrite as needed.

Parents are encouraged to use the app daily to help children learn to write correctly and improve their writing skills. The app is designed for use on tablets or mobile phones with large screens and is ideal for preschoolers and elementary school students.