GrünstromIndex vs US Weather
Same instrument, two spec sheets — measured, not claimed.
GrünstromIndex vs US Weather: common questions
Which is more reliable, GrünstromIndex or US Weather?
On our scheduled checks, US Weather leads on measured uptime — GrünstromIndex at 73.5% versus US Weather at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, GrünstromIndex or US Weather?
US Weather has the lower median latency in our checks — GrünstromIndex responds in 1072 ms versus US Weather at 223 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do GrünstromIndex and US Weather need an API key?
Neither needs a paid key — GrünstromIndex is callable with no signup, and US Weather is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call GrünstromIndex and US Weather from the browser?
Yes — both GrünstromIndex and US Weather 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 GrünstromIndex and US Weather free for commercial use?
GrünstromIndex has unclear commercial terms, and US Weather allows commercial use on its free tier. 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.