7Timer! vs AQICN
Same instrument, two spec sheets — measured, not claimed.
7Timer! vs AQICN: common questions
Which is more reliable, 7Timer! or AQICN?
Both are neck-and-neck — 7Timer! and AQICN 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, 7Timer! or AQICN?
AQICN has the lower median latency in our checks — 7Timer! responds in 600 ms versus AQICN at 224 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 7Timer! and AQICN need an API key?
7Timer! needs no key, while AQICN requires a free API key. If you want to start calling without signup, reach for 7Timer! first.
Can I call 7Timer! and AQICN from the browser?
Neither sends browser-friendly CORS headers reliably, so call 7Timer! and AQICN from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are 7Timer! and AQICN free for commercial use?
7Timer! has unclear commercial terms, and AQICN 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.