Bufferapp vs mailboxlayer
Same instrument, two spec sheets — measured, not claimed.
Bufferapp vs mailboxlayer: common questions
Which is more reliable, Bufferapp or mailboxlayer?
Both are neck-and-neck — Bufferapp and mailboxlayer 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, Bufferapp or mailboxlayer?
mailboxlayer has the lower median latency in our checks — Bufferapp responds in 547 ms versus mailboxlayer at 316 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 Bufferapp and mailboxlayer need an API key?
Both ask you to authenticate — Bufferapp uses an API key and mailboxlayer 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 mailboxlayer from the browser?
Neither sends browser-friendly CORS headers reliably, so call Bufferapp and mailboxlayer from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are Bufferapp and mailboxlayer free for commercial use?
Bufferapp has unclear commercial terms, and mailboxlayer 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.