Quotes on Design vs Zen Quotes
Same instrument, two spec sheets — measured, not claimed.
Quotes on Design vs Zen Quotes: common questions
Which is more reliable, Quotes on Design or Zen Quotes?
On our scheduled checks, Quotes on Design leads on measured uptime — Quotes on Design at 100% versus Zen Quotes at 90.2% 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, Quotes on Design or Zen Quotes?
Quotes on Design has the lower median latency in our checks — Quotes on Design responds in 354 ms versus Zen Quotes at 1657 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 Quotes on Design and Zen Quotes need an API key?
Neither needs a paid key — Quotes on Design is callable with no signup, and Zen Quotes is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Quotes on Design and Zen Quotes from the browser?
Only Quotes on Design is browser-friendly — it returns CORS headers over HTTPS. Zen Quotes needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are Quotes on Design and Zen Quotes free for commercial use?
Quotes on Design has unclear commercial terms, and Zen Quotes 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.