PostalPinCode vs ProblemsByVin
Same instrument, two spec sheets — measured, not claimed.
PostalPinCode vs ProblemsByVin: common questions
Which is more reliable, PostalPinCode or ProblemsByVin?
On our scheduled checks, ProblemsByVin leads on measured uptime — PostalPinCode at 98.0% versus ProblemsByVin 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, PostalPinCode or ProblemsByVin?
ProblemsByVin has the lower median latency in our checks — PostalPinCode responds in 912 ms versus ProblemsByVin at 738 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 PostalPinCode and ProblemsByVin need an API key?
Neither needs a paid key — PostalPinCode is callable with no signup, and ProblemsByVin is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call PostalPinCode and ProblemsByVin from the browser?
Yes — both PostalPinCode and ProblemsByVin 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 PostalPinCode and ProblemsByVin free for commercial use?
PostalPinCode has unclear commercial terms, and ProblemsByVin allows commercial use on its free tier. 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.