What are the absolute best apps for preschoolers to use? There are a lot of different apps that will probably benefit these smaller children in the long run. Being able to educate small children on a mobile device will quickly begin to become something that is sure to catch on all over the world. What are the absolute best apps for preschoolers to use? Any program that will help them to practice academic activities that they can easily understand is probably a good option to download onto your mobile device for them. There should be nothing standing in their way of learning once they begin to use this method with ease.