Yep.
It's a server side online service so you can't hack it, BUT.
There is a version that has no ads, HERE
+
You can get around the 5 submits limitations by using Parallel Space
It creates a virtual independent environment inside your phone, add your app there, it will think it's another phone and you'll get your 5 submits again!
You can also use "Secure Folder" if you have a Samsung.