It is what I wish iTunes was capable of....

I put this on my iPhone 7 and it is excellent! It allows for tuning of high end sounds for clear crisp renditions. After two days of using the free version, I upgraded with no problem. Excellent value for $2.99! I added it to my iPad and again no problems.

Martin and Delilah about Equalizer+ Pro HD music player, v2.4.4