All of these apps are available for Android devices. I haven’t been compensated for my reviews, I just want to share what apps are out there. See more categories under menu Android App Reviews.
No way to change options like it says it should. I tried it on my tablet, my husbands Galaxy S4 or my Galaxy s3. It uses a fixed do for identifying notes. I don’t use a fixed do when teaching solfege. It is also very clunky.