PotterDB vs TETR.IO
Same instrument, two spec sheets — measured, not claimed.
PotterDB vs TETR.IO: common questions
Which is more reliable, PotterDB or TETR.IO?
Both are neck-and-neck — PotterDB and TETR.IO each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, PotterDB or TETR.IO?
TETR.IO has the lower median latency in our checks — PotterDB responds in 525 ms versus TETR.IO at 357 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 PotterDB and TETR.IO need an API key?
Neither needs a paid key — PotterDB is callable with no signup, and TETR.IO is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call PotterDB and TETR.IO from the browser?
Yes — both PotterDB and TETR.IO 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 PotterDB and TETR.IO free for commercial use?
PotterDB has unclear commercial terms, and TETR.IO 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.