SMS on Twilio is a penny. So drop $20 into your account and you should have lots of room. You can also limit/throttle messages to start. I got a ton of traffic

SMS on Twilio is a penny. So drop $20 into your account and you should have lots of room. You can also limit/throttle messages to start. I got a ton of traffic from being on the front page with this Twilio app last year: https://news.ycombinator.com/item?id=3364942 https://news.ycombinator.com/item?id=3364942 And, to be honest, it didn't cost me much. Also, I know the folks at Twilio pay attention to HN, so if you get some exposure, you may hear from them (I did).