iNaturalist vs RescueGroups
Same instrument, two spec sheets — measured, not claimed.
iNaturalist vs RescueGroups: common questions
Which is more reliable, iNaturalist or RescueGroups?
On our scheduled checks, RescueGroups leads on measured uptime — iNaturalist at 24.7% versus RescueGroups at 97.2% 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, iNaturalist or RescueGroups?
RescueGroups has the lower median latency in our checks — iNaturalist responds in 689 ms versus RescueGroups at 300 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 RescueGroups need an API key?
Neither needs a paid key — iNaturalist is callable with no signup, and RescueGroups is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call iNaturalist and RescueGroups from the browser?
Only iNaturalist is browser-friendly — it returns CORS headers over HTTPS. RescueGroups needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are iNaturalist and RescueGroups free for commercial use?
iNaturalist has unclear commercial terms, and RescueGroups 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.