Realistically they’ll probably have to just directly charge users per api calls, just like how Reddit is charging them. All it would take is a few people abusing the app (potentially with bots/automation or even just a super active account that mods a bunch of big subs) and suddenly the dev owes reddit thousands of dollars while they are only receiving $3-10 from the abusive/hyperactive users!
Realistically they’ll probably have to just directly charge users per api calls, just like how Reddit is charging them. All it would take is a few people abusing the app (potentially with bots/automation or even just a super active account that mods a bunch of big subs) and suddenly the dev owes reddit thousands of dollars while they are only receiving $3-10 from the abusive/hyperactive users!