Best app for singers and guitar players

I have been using this app for years and I love it. It has helped me with my guitar practice and singing. I never write reviews but for the little money I paid for this app I feel I owe it to them to at least show how I feel about it. I will not write about the benefits of looping and speed control and all the cool features because you already know. I just want to say thank you to anyone who had anything to do with this app. I appreciate it and I think it is my favorite app ever.

Mehran1335 about Amazing Slow Downer, v5.5.7