Scroll's standard price is $4.99/month, with lots of special offers to help you get started. (If you'd rather manage your payments with Apple, the price is $5.99.)
You only support the sites you visit. Up to 70% of your subscription goes directly to the publishers you read based on the time you spend on Scroll sites.
If you have any issues with your credit card bill, please email support at scroll dot com, and we'll be glad to help you.