Postscript

Postscript is an SMS marketing and sales platform for Shopify brands. It helps ecommerce teams run campaigns, grow subscriber lists, manage replies, and use AI-assisted tools across the buying journey.

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SMS marketing and sales for Shopify brands

Postscript is an SMS marketing and sales platform built for Shopify brands. It combines campaign sending, automation, list growth, analytics, and customer replies in one system focused on SMS as a revenue channel.

The platform also extends into AI-assisted messaging, 1:1 shopping assistance, and compliance support. Pricing pages show tiered plans for growing stores, a trial period, and an enterprise path for brands that want more custom support and integrations.

Core capabilities

Campaigns and automations

Run SMS campaigns and automations with a visual flow builder and built-in templates for common journeys like cart abandonment, browse abandonment, welcome, upsell, and shipping updates.

Subscriber acquisition

Grow your subscriber list with popups, checkout collection, onsite opt-in, opt-in forms, CashBack, and dedicated keyword-based acquisition tools.

Postscript AI suite

Use Postscript AI tools to train brand voice, test message variants at scale, and power features such as Brand Center, Infinity Testing, Shopper, and Conversation Insights.

Shopper assistant

Give customers a 1:1 shopping assistant over SMS that answers questions, recommends products, and responds in your brand voice.

Analytics and inbox management

Track subscriber, revenue, and messaging performance with analytics, custom attribution windows, and response management for incoming texts.

Compliance tooling

Support compliance with built-in guardrails, consent and message records, and tools designed around TCPA and carrier requirements.

Common ways teams use Postscript

Automate lifecycle SMS
Launch timed and triggered SMS sends for promotions, cart recovery, welcome flows, upsells, and shipping updates using the visual flow builder and templates.
Build and segment your list
Capture more subscribers through popups, checkout collection, onsite opt-in, and keyword campaigns, then segment and message them from the same platform.
Assist shoppers over text
Use Shopper to handle product questions, recommend items, and keep conversations moving when a subscriber is ready to buy but needs help.
Optimize SMS with AI
Train brand voice, test variants, and review conversation data with Brand Center, Infinity Testing, and Conversation Insights to improve messaging over time.
Manage compliance and risk
Support legal and operational teams with compliance guardrails, consent records, and access to SMS-focused legal resources when risk questions come up.

Pros and Cons

Pros

Focused specifically on SMS for ecommerce brands, with workflows for campaigns, automations, and subscriber growth.
Supports list building with multiple acquisition tools, including popups and checkout opt-in.
Includes AI-assisted tools for brand voice, message testing, shopping assistance, and conversation analysis.
Offers compliance-oriented features and support, including records and legal resources.
Publishes clear pricing structure with a free 30-day trial and tiered plans for different stages of growth.

Cons

The strongest evidence on the site centers on SMS, so teams looking for a broader multichannel marketing suite may find the scope narrower than all-in-one platforms.
Some advanced capabilities, including AI products and custom integrations, appear to sit on higher-tier or add-on paths rather than the entry plan.

FAQ

Does Postscript offer a free trial?

Yes. The pricing page states that all plans include a free 30-day trial.

Is Postscript only for Shopify stores?

Postscript is built around Shopify brands and the homepage says it helps Shopify stores get more success from SMS. The pricing page also notes that merchants outside Shopify can use an SDK on their own shop code.

What can I do during the trial?

The pricing page says Postscript supports campaigns, automations, segments, subscriber acquisition tools, response management, analytics, custom attribution windows, and integrations. During the trial, you can build two keywords, set up automations, send campaigns, create segments, leverage integrations, and respond to customers.

How does Postscript help with compliance?

The pricing page says Postscript has a built-in compliance approach with tools designed to follow TCPA, carrier, and other regulatory guidelines. The compliance page adds playbooks, audit-ready records, and access to a network of TCPA litigators.

Quick Facts

Category: SMS marketing platform
Primary platform: Shopify
Primary users: Ecommerce and Shopify brands
Pricing: Free 30-day trial; tiered paid plans
Website: postscript.io
Notable workflows: Campaigns, automations, list growth, SMS replies, AI shopping assistance