I keep reading this but my experience is different: I have built and installed two applications on my iPhone more than a month ago and they still run just fine.

I keep reading this but my experience is different: I have built and installed two applications on my iPhone more than a month ago and they still run just fine. I didn't have to re-install them every week. My paid developer subscription expired two years ago. I suffer from all restrictions of the free tier (can't publish to App Store, can't use StoreKit, SiriKit, etc) except for the need to re-install the app every week. ¯\_(ツ)_/¯