People keep their phones for multiple years and Apple supports the phone with iOS operating system and security patches for 7+ years.

That can be true and also be paid for by the cost of the phone.

Would you write software, sell it to someone and promise support for 7 years?

Are you suggesting the cost of an iPhone is not able to cover the minimal updates made to the phone over the lifetime of it? How do the justify the cost of the Mac App Store fees? When they put zero effort in to it?

Seeing that no one is forced to use the Mac App Store, yet some people still chose to, telld you they they get value out of using it

Again, would you write software and support it for seven years without any compensation?

I did used to write software professionally and no, we traditionally charged per update but each update was significant and worthwhile. Any bugs or safety issues were of course fixed for free. We never moved to the subscription model which has in my view instigated these methods. I am not of the view each iOS update is significant. Now I occasionally have to write software for my current role but it isn't the main job and I release it for free as it is quite niche and I would prefer it is out there.

If the ongoing costs are a problem, they should charge a subscription to have continued access to the app store. Or a subscription fee for their operating system updates.

They did that for iPod Touches because of financial reporting requirements from 2007-2009.

So it would be better if prople didn’t get security updates and app makers had to support more operating systems like Android?

The hardware purchase is a one time purchase, the App Store infrastructure expenses are ongoing.