Postscript is a specialized SMS marketing and sales platform built exclusively for Shopify and Shopify Plus e-commerce brands. The company helps online retailers turn text messaging into their primary revenue-generating channel. Rather than offering a generalized "all-in-one" marketing suite, Postscript focuses entirely on mastering SMS marketing by combining deep e-commerce strategy with conversational AI technology. Their platform provides tools for rapid list growth (such as onsite opt-ins and popups), highly targeted segmentation, and automated, personalized messaging that engages shoppers in real-time.