Letter Sounds A to Z is an educational app designed for iPhone users. It is developed by All About Learning Press Inc. and is available for free. The app falls under the category of Education & Reference and is part of the All About Reading Pre-reading program.

The main feature of Letter Sounds A to Z is that it allows users to click on a letter and hear the most common sound associated with that letter. The app provides clear enunciation of the sounds of all 26 alphabet letters. It is specifically designed to be used with the All About Reading Pre-reading curriculum.

It's important to note that this app contains only the first sound of each letter. If users are looking for additional sounds, they are taught through the Phonogram Sounds app.

Overall, Letter Sounds A to Z is a valuable tool for teaching letter sounds to young learners. With its user-friendly interface and clear audio pronunciations, it is suitable for all learning styles.