Here is a simple step-by-step instruction of how to redeem your fresh promo code and get the app for free from Apple’s App Store. All you need is the promo code and your Apple ID with the password.
Step 1: Open the App Store
Find the App Store icon on your home screen and open it.
Step 3: Tap on Redeem Gift Card or Code
Right after you have tapped on “Redeem Gift Card or Code” you need to sign in with your Apple ID. Enter the password and proceed to step 4.