Postscript
SMS and MMS marketing platform built for Shopify brands
Founded
N/A
Starting Price
Free
Category
SEO Tools
Last updated March 25, 2026
About Postscript
Postscript is an SMS and MMS marketing and sales platform designed specifically for Shopify e-commerce brands. It enables merchants to grow subscriber lists through popups, checkout collection, QR codes, and keyword opt-ins. The platform supports targeted text message campaigns, automated SMS flows triggered by customer events, and two-way conversational messaging at scale. Postscript features advanced segmentation based on purchase behavior, AI-powered A/B testing, and detailed revenue attribution analytics. With built-in TCPA compliance and deep Shopify integration, it connects to help desks, email platforms, and review tools to create a unified marketing stack.
Pros & Cons
Pros
- Purpose-built for Shopify with deep integration
- Free starter plan with low barrier to entry
- AI-powered message optimization
- Built-in compliance and carrier guideline adherence
- Strong revenue attribution and analytics
Cons
Key Features
SMS and MMS campaign management
Automated text message flows
Advanced subscriber segmentation
AI-powered A/B testing (Infinity Testing)
Revenue attribution analytics
List building via popups, QR codes, and keywords
Two-way conversational SMS
Deep Shopify-native integration
TCPA-compliant messaging
Help desk and email platform integrations
Pricing
Starter
Free/month
- $25/mo minimum spend
- Basic SMS campaigns
- 30-day free trial
- List building tools
Growth
$100
Featured In
#5
Best Tools for Managing a Shopify Store Doing $1M+ Revenue (2026)
Best SMS marketing platform for Shopify stores that need a high-engagement channel beyond email — Postscript's behavioral triggers and compliance handling make SMS marketing scalable.
#3
Best Tools for Running a Successful Black Friday Campaign (2026)
Best SMS marketing tool for BFCM — reliable infrastructure for the send volume spikes BFCM creates.