Once you register for the Super Simple App, you will gain access to a free 7 day trial.
You will however need to cancel before the end of the trial period if you do not wish to subscribe and be charged. You can cancel through the iTunes account settings on your iPhone or iPad, or in desktop iTunes on a computer.
1. On your iPhones or iPad, go to Settings
2. Scroll down and select "iTunes & App Store"
3. Please click your Apple ID in the top corner.
4. This will allow you to access and edit your subscriptions