How I Use It
We used this app with a preschool class who is beginning to practice beginning sounds. During the first day, it was very difficult for students to understand the concept of the game: that you had to choose the white circle object to sort with the yellow squares. Once they understood the principle, they could work independently to practice the letters. We used this to extend some of our quicker learners. Eventually, we timed students to see if they could "beat" their last sorting time, which they really liked.
The app was easy for students to use (once they learned it) and kept them engaged. Our students wanted to race against each other to sort the sounds. I also liked that the focus was on phonemic awareness - no letter representation - but I would love to have that option as an addition choice as well (allowing the app to grow with the student).
For the app to work, you must choose three sounds -- for our lower learners, this was too much information to process and discern sounds, especially the soft g versus hard g sound. Additionally, some of the images can be confusing: one is a gate, and you need to listen to the sound carefully so that you don't confuse it with fence. As my students advance, I would also very much love to see other beginning sounds added (sh, ch, th).