[notahacker]

App screenshot on the appstore shows a list of names associated with a rota, presumably crew member names scraped from the airlines' password-protected crew portal.

It's not especially surprising airlines don't want unauthorised third party apps accessing and storing personal data from their intranets, even if the third party developer is very ethical about not leaking it to people without passwords and makes beautiful UX

[hedora]

It doesn't really matter if the airlines want them to scrape or not; it is their right to scrape.

[notahacker]

They don't have a right to scrape password protected personal data off an intranet, and AA also have the right to attempt to block an app or its scrapers regardless of whether the scraping is legal or not.

[Retric]

In this context blocking scrappers is probably legal for AA. However it might be illegal in other contexts, such as if there are any concerns around disability.