Onboard and verify mobile users with a single SMS

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A powerful full-stack service that instantly enables you to onboard and verify your users with a single SMS. It's free!
Hey this looks like a really awesome service! I'd like to give some suggestions to the developers of the site though. One is that this kind of hard to read the features because the horizontal scrolling is really distracting. I heard these kinds of horizontal scrolling landing pages don't convert very well. Maybe run some A/B tests?
It was hard to determine but it appears to be free for US numbers and costs for international. Is this sustainable?