Where do these opensource apps get their data from? Usually retrieving weather data costs money when you use an api.
I guess those „opensource“ weather apps use an ad model to finance this api calls. May work on a large user base.
Usally iOS users buy their products so i guess gathering a large user base for ad revenue model isnt working for those devs
All of the information presented via the API is intended to be open data, free to use for any purpose. As a public service of the United States Government, we do not charge any fees for the usage of this service