The app is Clime Pro on iOS, they lock full access to Hurricane Milton data behind a $10 USD per week paywall.
If you’re in the area impacted by Milton, you can find publicly available resources at the National Hurricane Center’s website: National Hurricane Center
What data does this app have that isn’t freely available somewhere else?
Yep. Hurricane info is available from official sources for free.
However, I can’t help but imagine some tiktok of someone finding themselves trapped on a rooftop crying because their preferred app wouldn’t show some critical info.
For anyone who doesn’t know where here’s NOAA. https://www.nhc.noaa.gov/refresh/graphics_at4+shtml/093335.shtml?cone They’re who does America’s atmospheric and oceanic measurements, everyone selling it gets it from them