I agree, hate how everything is a subscription now but $40 is a reasonable price for lifetime access.

For better or worse (mostly worse) developing an iPhone app isn't like making software for Windows XP where you ship it and it's done and will still run 20 years later with no additional work. There will no doubt be ongoing expenses and continued development work to keep it functional on new devices and new OS versions. So I get why subscriptions are a thing (especially since Apple has never allowed for paid upgrade pricing), the part I don't get is how so many of them think I want to spend $15/month forever on an IoT toaster that will revolutionize my bagel experience with AI.