HelloSalut vs PostalCodes
Same instrument, two spec sheets — measured, not claimed.
HelloSalut vs PostalCodes: common questions
Which is more reliable, HelloSalut or PostalCodes?
On our scheduled checks, PostalCodes leads on measured uptime — HelloSalut at 95.1% versus PostalCodes 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, HelloSalut or PostalCodes?
PostalCodes has the lower median latency in our checks — HelloSalut responds in 2362 ms versus PostalCodes at 1030 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 HelloSalut and PostalCodes need an API key?
Neither needs a paid key — HelloSalut is callable with no signup, and PostalCodes is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call HelloSalut and PostalCodes from the browser?
Only HelloSalut is browser-friendly — it returns CORS headers over HTTPS. PostalCodes needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are HelloSalut and PostalCodes free for commercial use?
HelloSalut has unclear commercial terms, and PostalCodes 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.