Yes this is truth to some degree. However, you dont know what you are getting with an app. If you go to read the official NWS page, the forecasts are human cura

Yes this is truth to some degree. However, you dont know what you are getting with an app. If you go to read the official NWS page, the forecasts are human curated by a pro. Apps likely are just taking model output directly and feeding it to you as gospel.