LetterSchool by Boreaal is an excellent app for children who have problems learning their letters (both upper and lowercase) and numbers (this apps does one to ten). It is very entertaining, so it keeps your child's attention. It costs $2.99 to download and there are no in-app purchases. It is compatible with the iPhone, iPod touch, and iPad.
Boreaal does have a LetterSchool Lite which is a free version of LetterSchool; however, this app does letters A to E (both upper and lowercase) and numbers 1 to 5. It is completely free, so download it and see how your child does with it. If it’s a winner, go and download LetterSchool. If not, then all you have to do is take LetterSchool Lite off your device.