I'm working on an app. I feel like putting this app as paid version will not call attention of many user's so I was thinking to release it for free.
To earn still earn some money, I'm thinking to implement the Donation option where user can select how much he/she would like to pay (in a range of documented IAP tiers: Tier1$, Tier2$, Tier3$, ...).
Is it possible to achieve this? What about the IAP categories, in which category would this kind of payment fit (Non consumable, subscription)?
I'm also considering doing this. I looked into it several years back; An IAP at that time had to fall into one of several well-defined categories, and donations was not one of them.
How about badges? Gold badge costs $1, Diamond costs five, Platinum costs 30.
And people can purchase badges.
Or theme the app with a different colour background; different colours cost different amounts.
Link: iPhone in app purchase for charitable donations