I am totally new to iOS development and have a question about charging. If I build an iOS app, can I charge app users a monthly fee to use the app? Currently, I run a website where users are charged a monthly fee to be able to access the site. When they first join the site, after they fill out their profile, they are redirected to a payment processor who obtains their credit card information and decides whether or not the card may be fraudulent. If it's not, the user can become a site member and they are directed back to my site which they then have full access to. The credit card company will then charge them my monthly membership fee and pay me a percentage of that fee each month after they deduct their processing charge. I would now like to provide my website's features via an iOS app. Is it possible to create and release an iOS app in the Apple App Store that would adhere to this monthly charging model? If not, what are my options if I want to