Medicare pocket protector

Hi, I just read your article about navigating Medicare and even though I’m enrolled in A and have a supplemental, I like the idea of checking on the above app to see if I was where I should be. I searched for the app and it comes up pocket protector, but not Medicare pocket protector. Before I start scanning all my personal info into this app, I wanted to be sure I had the right one.
Thank you so much!
I’m assuming this app is free?