Re:Show HN: Server Check.in - inexpensive website uptime mon...
by geerlingguy on Monday December 10, 2012 @05:03PM
(#4901761)
Sure thing! I considered using email-to-SMS and lowering the cost to < $1.00/month, but didn't want to make that compromise.
I do have to limit the SMS messages to 50/month (600/year) maximum at this point (see: https://servercheck.in/sms), until I can better track people's usage patterns and make sure I don't get hammered with larger fees than I'm taking in. That limit will hopefully be lifted at some point.
You are correct, they are using email-to-SMS gateways.