[SilverBirch]

I think you have the wrong mental model for tools that you need to use for work. If you purchase a one-off license for a tool, you are entering an endless undefined relationship with the vendor. What support model are you expecting? You haven't paid for any. If iOS updates tomorrow and your software becomes unusable, does the vendor owe you a fix? What about in 6 months? 12? What if it isn't iOS changing but just something you specifically find buggy? You've paid your money, do you expect the developer to work for free from then on?

By purchasing a subscription what you are doing is committing to a revenue stream so that you know the product is being maintained, updated, and supported. If they don't keep the software supported, up to date, bugfixed? Cancel your subscription. Especially for tools like this - which generally are aimed at people using it for their job - you should be valuing those things. You should be avoiding buying tools from companies who don't have a clear model to continue to support your use over time.

[averageRoyalty]

If I purchase a hammer, I expect no support unless it is faulty within a reasonable period after purchase. If there is a fault in that time, the vendor must refund my money or fix the hammer.

If the world stops making nails compatible with my hammer down the line, I don't expect the vendor to do anything about it.