Great until it stopped working

This app worked beautifully for me, until it suddenly started freezing every time I try to use it. Now its useless, which is frustrating because it actually worked really well at helping me control my breathing and calm down. When I came to the App Store, I noticed that they dont seem to be updating it anymore, so my hopes arent high that the issues will be resolved soon.

Cat Jackson about Stress Doctor by Azumio - Stress reducer and slow breathing yoga exercise, v1.2