SLA Uptime Calculator vs WakaTime
Same instrument, two spec sheets — measured, not claimed.
SLA Uptime Calculator vs WakaTime: common questions
Which is more reliable, SLA Uptime Calculator or WakaTime?
Both are neck-and-neck — SLA Uptime Calculator and WakaTime 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, SLA Uptime Calculator or WakaTime?
WakaTime has the lower median latency in our checks — SLA Uptime Calculator responds in 1373 ms versus WakaTime at 969 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 SLA Uptime Calculator and WakaTime need an API key?
Neither needs a paid key — SLA Uptime Calculator is callable with no signup, and WakaTime is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call SLA Uptime Calculator and WakaTime from the browser?
Only SLA Uptime Calculator is browser-friendly — it returns CORS headers over HTTPS. WakaTime needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are SLA Uptime Calculator and WakaTime free for commercial use?
SLA Uptime Calculator has unclear commercial terms, and WakaTime 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.