A free program for Android, by StoryToys.

Farm 123 ~ StoryToys Jr. is an educational game, based on the popular story of the same name, that teaches preschoolers to count. It’s a preschooler-friendly game, designed to help your child learn to count and to recognize numbers, in a fun and interactive way.

In the game, your child’s character, Farmer Jo, has a farm to tend and to harvest. Every day, new things appear on the farm, and your child has to learn to count them.

The game also includes a fun and educational element, in which your child can interact with the farm animals and help them with their tasks.