OpenQR vs Passantenfrequenzen Zürich
Same instrument, two spec sheets — measured, not claimed.
OpenQR vs Passantenfrequenzen Zürich: common questions
Which is more reliable, OpenQR or Passantenfrequenzen Zürich?
Both are neck-and-neck — OpenQR and Passantenfrequenzen Zürich each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, OpenQR or Passantenfrequenzen Zürich?
Passantenfrequenzen Zürich has the lower median latency in our checks — OpenQR responds in 1125 ms versus Passantenfrequenzen Zürich at 569 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 OpenQR and Passantenfrequenzen Zürich need an API key?
Passantenfrequenzen Zürich needs no key, while OpenQR requires a free API key. If you want to start calling without signup, reach for Passantenfrequenzen Zürich first.
Can I call OpenQR and Passantenfrequenzen Zürich from the browser?
Yes — both OpenQR and Passantenfrequenzen Zürich 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 OpenQR and Passantenfrequenzen Zürich free for commercial use?
OpenQR has unclear commercial terms, and Passantenfrequenzen Zürich 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.