iNaturalist vs MeowFacts
Same instrument, two spec sheets — measured, not claimed.
iNaturalist vs MeowFacts: common questions
Which is more reliable, iNaturalist or MeowFacts?
On our scheduled checks, MeowFacts leads on measured uptime — iNaturalist at 25.5% versus MeowFacts at 100% 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, iNaturalist or MeowFacts?
MeowFacts has the lower median latency in our checks — iNaturalist responds in 1140 ms versus MeowFacts at 576 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 iNaturalist and MeowFacts need an API key?
Neither needs a paid key — iNaturalist is callable with no signup, and MeowFacts is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call iNaturalist and MeowFacts from the browser?
Only MeowFacts is browser-friendly — it returns CORS headers over HTTPS. iNaturalist needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are iNaturalist and MeowFacts free for commercial use?
iNaturalist has unclear commercial terms, and MeowFacts 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.