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Bufferapp vs Cisco Spark

Same instrument, two spec sheets — measured, not claimed.

APIBufferappNEW—Cisco SparkNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Bufferapp vs Cisco Spark: common questions

Which is more reliable, Bufferapp or Cisco Spark?

On our scheduled checks, Cisco Spark leads on measured uptime — Bufferapp at —% versus Cisco Spark 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 Bufferapp and Cisco Spark need an API key?

Both ask you to authenticate — Bufferapp uses an API key and Cisco Spark uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Bufferapp and Cisco Spark from the browser?

Only Cisco Spark is browser-friendly — it returns CORS headers over HTTPS. Bufferapp needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Bufferapp and Cisco Spark free for commercial use?

Bufferapp has unclear commercial terms, and Cisco Spark 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.