Works great!

It does drain the battery some on my 5S, but I get a full days use of the phone.

Beside that, I love the app. Its always on my phone. I dont have to think about muting as it does it automatically for every appointment or location where I want my phone silent.

Sometimes I forget to use the "!ring" function, and my phone doesnt ring when I wish it did. But, thats minor. I wouldnt be without this app.

I dont think theres another app like it.

RusG about AutoSilent