People see bitcoin/blockchain, don’t know the difference between the two, and realise other people have made lots of money on it. Same people see a new thing which also uses (or in their eyes, “is”) blockchain, and think this is going to be the new way to make money.
I use an app called WeatherRadar - https://apps.apple.com/gb/app/weather-radar-storm-alerts/id545993260
It shows cloud cover as well as rainfall, and also has a few other views I don’t use. But what I really like is the iOS home screen widget, which shows me my local weather even when I’m not actively looking at it.