The most interesting takeaway from this list for me was the revelation that developers can use iTunes affiliate links to reduce Apple's cut of their App Store revenue from 30% to 23% for certain purchases.[1] The affiliate gets a 7% commission for every purchase made within 24 hours on the same device from which the link was accessed.
(A cynic might think that could have been relevant to the decision to include as many as 50 apps on this "must-have" list.)
[1] https://www.macstories.net/tutorials/a-comprehensive-guide-t...