Postscript is an AI-native retention marketing platform that helps brands build customer relationships and drive revenue throughout the buying experience. Its unified platform supports SMS, RCS and email, bringing customer and brand context together so AI agents can deliver relevant, on-brand messages across channels. Tools include list growth and onsite opt-in features, Shopper for personalized one-to-one marketing journeys, and Infinity Testing to optimize messages.

Brands can also use CashBack, a coupon alternative designed to support revenue, subscriber growth and margins. Postscript provides built-in compliance controls, integrations, deliverability support and a Brand Center for consistent messaging. For businesses seeking hands-on expertise, Postscript Plus offers in-house SMS strategists to create, manage and optimize programs.

The company also provides customer service, technical resources, educational content, webinars and a partner directory. Postscript positions its platform as a multichannel alternative to systems built by adding features onto a single-channel foundation, with its Agentic Context Platform included in every plan at no extra cost