alt Hacker News> my justification for 'app' over website has been offline.
Gosh, I wish more apps did some kind of progressive "enhancement" and let people read already cached messages and do deferred sends like the old days, instead of being completely useless without a data connection.
I used to run a company (2010-2018) where our customers were almost always using our product inside of grocery stores, which are almost always metal sheds with some finishings on the walls. Not so great for cell service, it became essential for us to support offline mode if we wanted to keep those customers happy and engaged.
I spent many late nights trying to debug reachability bugs. It's frankly a nightmare trying to build a reliable app when the user has /some/ cell service, but not enough to operate the app reliably.