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What Is Postscript Used For: Features, Reviews & Alternatives

SMS marketing platform for Shopify stores.

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Editorially updated Oct 25, 2025

The overview

What Postscript is for

Postscript provides a browser-native environment for Shopify merchants to build, manage, and scale their SMS marketing programs. It facilitates the entire lifecycle from subscriber acquisition and segmentation to campaign deployment and performance analytics, all accessible through a web interface, focusing on driving direct revenue through text message engagement.
Key features

1Core Capabilitie

  • Subscriber segmentation builder
  • SMS campaign composer
  • Automated flow editor
  • Performance analytics dashboard
  • TCPA/CTIA compliance tool

2Specialized Workflow

  • Shopify customer data sync
  • Purchase history-based segmentation
  • A/B test campaign launcher
  • Two-way message inbox
  • Keyword opt-in configuration
  • MMS content uploader

Who it helps

Useful ways to use Postscript

01
Custom Opt-in Form Integration
Integrating API or webhooks with custom Shopify theme elements or third-party apps to capture SMS subscribers with specific consent language and data points beyond standard pop-up
02
Daily Campaign Management & Compliance
Overseeing scheduled SMS campaigns, monitoring delivery rates, responding to two-way messages, and ensuring all outbound communications adhere to TCPA and CTIA regulations for a high-volume sender
03
Launching First SMS Marketing Channel
Rapidly setting up initial subscriber acquisition methods (pop-ups, keywords), configuring essential automated flows (welcome, abandoned cart), and deploying initial promotional campaigns to drive early revenue

A practical path

How to use Postscript

Initiate a New SMS Campaign

Log into the web interface, navigate to the 'Campaigns' section in the left-hand menu, and click 'Create New Campaign' to begin the message creation proce

External signals

Reviews & reputation

AI aggregated
4.6/ 5

Aggregated review score

Highly valued by Shopify merchants for its deep integration, robust automation capabilities, and dedicated support, though some users note the learning curve for advanced features.

G2LarryLudwigProduct ReviewSmartCustomerTrustpilot

Quick answers

Frequently asked questions

1How does Postscript handle SMS compliance for different regions?⌄

Postscript provides built-in tools and guidance to help merchants comply with TCPA (US) and CTIA guidelines, including explicit opt-in requirements, clear opt-out instructions, and age-gating features. For Canada, it supports CASL compliance. Merchants are responsible for understanding and adhering to local regulations.

2Can I migrate my existing SMS subscriber list from another platform?⌄

Yes, Postscript supports importing existing subscriber lists. You'll need to provide proof of consent (e.g., timestamps, opt-in source) for each subscriber to ensure compliance and maintain list health. The platform offers a guided import process.

3What kind of Shopify data can I use for segmentation?⌄

Postscript deeply integrates with Shopify, allowing segmentation based on a wide array of customer and order data, including purchase history (e.g., specific products bought, total spend, last purchase date), customer tags, loyalty program status, and browsing behavior.

4Is two-way messaging supported for customer service?⌄

Yes, Postscript includes a two-way messaging inbox where you can view and respond to customer replies directly within the platform. This allows for personalized customer service interactions and conversational commerce.

5How does Postscript's pricing work for high-volume senders?⌄

Postscript operates on a usage-based pricing model, primarily charging per SMS segment sent. Plans typically include a base fee plus per-message costs, which decrease at higher volumes. Dedicated account managers can help optimize costs for large-scale operations.

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