I have two apps:
- A paid app that costs $0.99 (without ads)
- A free app - without ads
In free version I have share page and if user shares the app 10 times they should be able to get pro (paid) version for free.
I can't figure out how to make this. How to give access some users to download paid app for free in some cases.
I searched for promo codes but it seems that it is hard coded values and it is limited to 100 codes in total. Is there a way to make things dynamically?