Postscript

Postscript is an SMS marketing and commerce platform built for e-commerce brands, enabling retailers to build SMS subscriber lists, send promotional campaigns, automate triggered flows, and have two-way text conversations with shoppers. It integrates tightly with Shopify and is used by thousands of DTC brands to run SMS as a primary retention and revenue channel. Postscript has positioned itself as the SMS equivalent of Klaviyo — focused on revenue impact and deliverability over channel gimmicks. The company is venture-backed and has grown as brands have diversified away from email and social media toward owned, direct-to-consumer channels.