The beauty of the app store is that if you don't like, go find another app.
Completely correct.
Personally, I use Fantastical all of my devices. I use to run my life. It had gotten a bit long in the tooth however, and I welcome the update. I'm going to try to free trial but am pretty sure I'll subscribe.
I have it on my Mac and on my iPhone. I never paid for the iPad version as I recall. I like it as an app, but do not use it enough because they do not support non-Julian dates (Hebrew, Japanese or Islamic calendars), as my iOS/macOS devices do. I requested but was told it was not on their roadmap, but not it seems weather was more important to them (I hope based on user requests, as it is not of interest to me).
Recurring subs are the only real way for independent devs to continue making a living. If paying flexibits $3.33/mo means there will be more frequent updates, then it's worth it.
They are one way, creating new versions on occasion (as they already did from Fantastical 1 to Fantastical 2), is another.
Sub fatigue is a real thing, but you have to balance that with the value you get back from it.
I completely understand their dilemma. There is an ongoing cost to keep a product up to date (just ensuring it runs on new OS versions, let alone taking advantage of new features). The problem these developers face is that they either have to try to grow their customer base (and use the new customers to pay for ongoing development), periodically create new versions (that they have to re-sell all their existing customers), or move to a subscription model.
Start with 10 developers at $120,000 a year (plus 25% for benefits for a total of $150,000), they need to net $1.5 million adding taxes (at a minimum of 20%) brings it to $1.875 million. Add in Apple’s cut brings you to $2.679 million. Not counting any other costs, they would need to have about 45,000 subscribers at $60 a year, or 67,000 new customers a year at a purchase price of $40.
If they pick a subscription model they have to decide at what price they will get enough customers to justify the cost of the work. The problem is that for many people, there is no difference between $12 a year and $60 - they will not pay either. So that, while if they got 100% adoption at $6 a year (or even an increase from new customers who are more comfortable with that than the $40 entry price before), it would be the same as 50% adoption at $12, 25% at $24, and 12.5% at $48, they are just as likely to get close to the same adoption at $6 a year as at $60.
All I can say is that I hope they know what they are doing and have done some customer research so they do not lose everything trying to stay alive.
Start with 10 developers at $120,000 a year (plus 25% for benefits for a total of $150,000), they need to net $1.5 million adding taxes (at a minimum of 20%) brings it to $1.875 million. Add in Apple’s cut brings you to $2.679 million. Not counting any other costs, they would need to have about 45,000 subscribers at $60 a year, or 67,000 new customers a year at a purchase price of $40.