5 stars because it's free. 2 issues with the app – Drum Beats Review

To the developer: thank you for this great resource. It's a good and useful app for my guitar practice. Here are two functions necessary to make this app useful to musicians: #1: The ability to choose lower BPM for study, scales, etc. #2: It must run in the background. When I look at sheet music or tab in PDF or Guitar Pro, the beats stop. #3 isn't imperative but it would be nice to have more jazz styles including with brushes.
Review by adaptiveagile on Drum Beats.