Everyone says their bank or doctor, or favorite restaurant, or whatever requires an app. It is basically NEVER true. You just have to insist you do not own a compatible device and do not want one as you do not wish to accept the terms of service of Google or Apple, and/or say it is against your undisclosed religion. Works every time. Even at theme parks like Disney that insist you need an app for the map or fast pass... a manager can always override that requirement and give you the magic edge case privileges.
Source: Not had a cell phone carrier or carried a phone in 5 years and never been restricted from doing anything I did previously, as a frequently traveling tech business owner.