Last updated: 2026-06-05
WAETTA is a weather app. It is designed to work with as little data as possible: no account, no tracking, no ads.
To show the weather, the coordinates of your selected or current place are sent to MET Norway (api.met.no / yr.no) for forecasts, precipitation nowcast, coastal data and weather warnings. MET Norway receives only the coordinates needed to answer the request and does not identify you.
Place search runs entirely on your device using Apple's on-device geocoding (CLGeocoder); your typed search terms are not sent to any weather provider. Maps in the radar view are provided by Apple (MapKit).
WAETTA does not use Open-Meteo. WAETTA does not use advertising SDKs, analytics SDKs, or cross-app tracking identifiers.
Favorites and preferences are stored locally on your device. WAETTA does not require an account.
Location and notifications are optional. You can deny them and still use the app with manual places and without alerts.
Weather, precipitation nowcast, coastal and warning data: MET Norway (yr.no), licensed under CC BY 4.0. Geocoding and maps: Apple, processed on-device.
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