Meteorologisk Institutt vs RainViewer
Same instrument, two spec sheets — measured, not claimed.
Meteorologisk Institutt vs RainViewer: common questions
Which is more reliable, Meteorologisk Institutt or RainViewer?
On our scheduled checks, RainViewer leads on measured uptime — Meteorologisk Institutt at —% versus RainViewer at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Do Meteorologisk Institutt and RainViewer need an API key?
Neither needs a paid key — Meteorologisk Institutt is callable with no signup, and RainViewer is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Meteorologisk Institutt and RainViewer from the browser?
Yes — both Meteorologisk Institutt and RainViewer send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are Meteorologisk Institutt and RainViewer free for commercial use?
Meteorologisk Institutt allows commercial use on its free tier, and RainViewer has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.