ISRO vs TLE
Same instrument, two spec sheets — measured, not claimed.
ISRO vs TLE: common questions
Which is more reliable, ISRO or TLE?
On our scheduled checks, ISRO leads on measured uptime — ISRO at 100% versus TLE at 88.2% 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, ISRO or TLE?
ISRO has the lower median latency in our checks — ISRO responds in 369 ms versus TLE at 1090 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 ISRO and TLE need an API key?
Neither needs a paid key — ISRO is callable with no signup, and TLE is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call ISRO and TLE from the browser?
Yes — both ISRO and TLE 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 ISRO and TLE free for commercial use?
ISRO has unclear commercial terms, and TLE 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.