fingerprints pick up on all sorts of things that make you different enough combined with another signal, 33 bits can be enough to single you out from anyone else on the planet... iOS can be 10-15, and given a residential IP that's plenty - always mobile is more anonymous on the web but guess what's much worse? apps.
a native app with 0 permission prompts gets you more bits than web
a native app with 0 permission prompts gets you more bits than web