Sofiaplan vs The Guardian
Same instrument, two spec sheets — measured, not claimed.
Sofiaplan vs The Guardian: common questions
Which is more reliable, Sofiaplan or The Guardian?
On our scheduled checks, Sofiaplan leads on measured uptime — Sofiaplan at 100% versus The Guardian at 98.0% 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, Sofiaplan or The Guardian?
The Guardian has the lower median latency in our checks — Sofiaplan responds in 1666 ms versus The Guardian at 742 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 Sofiaplan and The Guardian need an API key?
Sofiaplan needs no key, while The Guardian requires a free API key. If you want to start calling without signup, reach for Sofiaplan first.
Can I call Sofiaplan and The Guardian from the browser?
Only The Guardian is browser-friendly — it returns CORS headers over HTTPS. Sofiaplan needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are Sofiaplan and The Guardian free for commercial use?
Sofiaplan has unclear commercial terms, and The Guardian 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.