httpSMS vs Yes No
Same instrument, two spec sheets — measured, not claimed.
httpSMS vs Yes No: common questions
Which is more reliable, httpSMS or Yes No?
On our scheduled checks, Yes No leads on measured uptime — httpSMS at —% versus Yes No 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 httpSMS and Yes No need an API key?
Yes No needs no key, while httpSMS requires a free API key. If you want to start calling without signup, reach for Yes No first.
Can I call httpSMS and Yes No from the browser?
Yes — both httpSMS and Yes No 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 httpSMS and Yes No free for commercial use?
httpSMS has unclear commercial terms, and Yes No 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.