IDPhotoSnap Passport Photo Specs vs Userstack

Same instrument, two spec sheets — measured, not claimed.

Uptime · 30d
Uptime · 90d100%99.02%
Uptime · 30d100%98.3%
P50 · ms1616443
P95 · ms27413029
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

IDPhotoSnap Passport Photo Specs vs Userstack: common questions

Which is more reliable, IDPhotoSnap Passport Photo Specs or Userstack?

On our scheduled checks, IDPhotoSnap Passport Photo Specs leads on measured uptime — IDPhotoSnap Passport Photo Specs at 100% versus Userstack at 99.02% 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, IDPhotoSnap Passport Photo Specs or Userstack?

Userstack has the lower median latency in our checks — IDPhotoSnap Passport Photo Specs responds in 1616 ms versus Userstack at 443 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 IDPhotoSnap Passport Photo Specs and Userstack need an API key?

IDPhotoSnap Passport Photo Specs needs no key, while Userstack requires a free API key. If you want to start calling without signup, reach for IDPhotoSnap Passport Photo Specs first.

Can I call IDPhotoSnap Passport Photo Specs and Userstack from the browser?

Yes — both IDPhotoSnap Passport Photo Specs and Userstack send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are IDPhotoSnap Passport Photo Specs and Userstack free for commercial use?

IDPhotoSnap Passport Photo Specs has unclear commercial terms, and Userstack 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.