caldays vs Disify
Same instrument, two spec sheets — measured, not claimed.
caldays vs Disify: common questions
Which is more reliable, caldays or Disify?
On our scheduled checks, Disify leads on measured uptime — caldays at —% versus Disify at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Do caldays and Disify need an API key?
Neither needs a paid key — caldays is callable with no signup, and Disify is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call caldays and Disify from the browser?
Yes — both caldays and Disify 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 caldays and Disify free for commercial use?
caldays has unclear commercial terms, and Disify 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.