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