Quandl vs Sofiaplan
Same instrument, two spec sheets — measured, not claimed.
Quandl vs Sofiaplan: common questions
Which is more reliable, Quandl or Sofiaplan?
Both are neck-and-neck — Quandl and Sofiaplan 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, Quandl or Sofiaplan?
Quandl has the lower median latency in our checks — Quandl responds in 823 ms versus Sofiaplan at 1666 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 Quandl and Sofiaplan need an API key?
Neither needs a paid key — Quandl is callable with no signup, and Sofiaplan is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Quandl and Sofiaplan from the browser?
Neither sends browser-friendly CORS headers reliably, so call Quandl and Sofiaplan from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are Quandl and Sofiaplan free for commercial use?
Quandl has unclear commercial terms, and Sofiaplan 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.