Pros:

• WOW is offline. I just found out there are guitar applications and music lyrics that are offline. This is very useful especially for those who want to learn guitar.
• Free. Ads appear no matter.
• Support All Genre. More choices.
• Record. This is the best part.
• Available Chart Chart.
• Guitar tutorial learning guides are available.

Cons:

• Nothing.

My Thought:

This is an app I recommend personally.