Most customers are probably going to assume your a con artist if you don't use the official IAP. When I use mobile apps I like being able to do all my spending in one place. I want to be able to go to subscriptions and cancel everything I don't need at once. Just yesterday I had to manually stop a PayPal payment renewal since the merchants cancellation process doesn't work ( 2 emails to customer service and I get the…
and this is apple’s reasoning for why their strict control over the app store is warranted. they want it to be seen as trusted and infallible and that can’t happen if 3rd parties have free reign.
for me, the correct way forward isn’t external referrals. it’s allowing multiple app stores on devices. if you don't want the “untrusted” 3rd party store with more lax dev rules than Apple’s, just don’t use them.