An electronic logbook is the only way to go when filling out Airlineapps, pilotcredentials, and the FedEx app. FedEx used to be on pilotcredentials, but made their own for infosec reasons, and you will notice that their app is almost exactly the same as the pilotcredentials apps. That said, SWA and AA are going to ask you for the exact same things, and that’s not even as detailed as Airlineapps.
Put your stuff in an electronic logbook even if it takes weeks!