Geometric Weather: a light and powerful weather app (iOS/Mac and Android) that provides you with real-time temperature, air quality, 15-days weather forecast, etc
What is meant by “non-free network service” in this context?
Geometric Weather gets its weather data from AccuWeather and OpenWeatherMap, which are not open source weather APIs. In contrast, omWeather gets its weather data from Open-Meteo, which is open source.
Why would I use this "Geometric Weather" on Android instead of a completely free weather app such as omWeather?
Doesn't show as much information (e.g. dew point, daily forecast details).
Doesn't support multiple weather providers, AFAIK.
Doesn't look as nice, if that matters.
Both apps don't track. I would venture a guess and say that Breezy Weather has the warning, because it includes AccuWeather, which can be turned off and changed to OpenMeteo or others.