Promotion code for iOS
1. Open the appstore
2. Select the apps tab, scroll all the way down, and click the ‘Redeem’ button.
3. click the “You can also enter your code manually”.
4. Enter the code you have and click the ‘Redeem’ button.
Promotion code for Android
1. Open the playstore
2. Click your profile
3. Click the “Payments & subscriptions”
4. Click the “Redeem code”
5. write the code and click the “Redeem” button.