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