Random Profiles vs Userstack
Same instrument, two spec sheets — measured, not claimed.
Random Profiles vs Userstack: common questions
Which is more reliable, Random Profiles or Userstack?
On our scheduled checks, Random Profiles leads on measured uptime — Random Profiles 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, Random Profiles or Userstack?
Random Profiles has the lower median latency in our checks — Random Profiles responds in 282 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 Random Profiles and Userstack need an API key?
Both ask you to authenticate — Random Profiles uses an API key and Userstack uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.
Can I call Random Profiles and Userstack from the browser?
Yes — both Random Profiles 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 Random Profiles and Userstack free for commercial use?
Random Profiles 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.