Postscript is an AI-native retention marketing platform that helps brands build customer relationships and drive revenue across the buying experience. Its unified platform brings together SMS, RCS, and email, with customer and brand context designed to help AI agents deliver relevant, on-brand marketing at the individual subscriber level. Tools include Shopper for personalized marketing journeys and Infinity Testing for optimizing messages, alongside Onsite Opt-in and list-growth products to help businesses attract subscribers.

CashBack offers a coupon alternative intended to support revenue, list growth, and margins. Brands can also access Postscript Plus, which provides in-house SMS strategists to help plan, run, and optimize campaigns, as well as support from ecommerce and marketing experts. The platform includes compliance features, integrations, and centralized brand controls.

Postscript also provides a partner directory, technical help resources, webinars, case studies, and marketing guidance. The company positions its service as a multichannel retention solution with built-in compliance and a focus on helping brands improve engagement, conversions, and customer value