Fitness Uncensored app

Welcome to Fitness Uncensored; a health and Fitness App created by Sam Taylor and Taylor Olsen. Who both have a passion helping people live a happier and healthier lifestyle no matter their needs, that is why they have created Fitness uncensored which has 9+ training programs.
You may purchase an auto-renewing subscription through an In-App Purchase.
• Auto-renewable subscription
• 1 month: $22.99
• Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period.
• Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase
• Privacy policy and terms of use: https://www.fitnessuncensored.net/privacy-policy.html

Add the same thing within the app before generating a purchaseRequest within the app. It can't be done in the app on a UIAlert. It must be done on a modally presented viewController.