The SMS Marketing Platform Built for Shopify Brands

We focus on what we do best—SMS marketing. We are building a best-in-class platform that is deeply integrated in the Shopify ecosystem. Want to see how we work? Enter your mobile number below to receive a series of interactive text messages.

Or text DEMO to 24175 (US) / 1-855-976-0915 (Int.)

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Billions of dollars in revenue generated by Postscript


Online revenue attributed to Postscript SMS


ROI across all customers in all categories

12,000+ Shopify stores prefer Postscript

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Grow your SMS subscriber list

Everything you need to build an engaged and compliant SMS subscriber list. Learn more about list growth or SMS marketing compliance.

Desktop and mobile popups

Collect both phone numbers and emails. Customize the design to match your brand, choose the type of incentive you want to offer, and select when and where on your site you want your popups to appear.


Create an unlimited number of text-to-join keywords to share across all your marketing channels. Use keywords to track opt-ins and revenue generated from different marketing channels or campaigns.

Checkout collection

Collect SMS subscribers on our checkout pages. This includes the Shopify and Shopify Plus checkout, ReCharge, Carthook, or a custom checkout page integrated with Postscript.

Landing page and opt-in form

Create a landing page with an SMS opt-in form that you can link to from email campaigns or social media posts. This includes two-touch technology on mobile.

QR codes

Create unique QR codes for your product packaging and in-person experiences that people can scan to opt-in to your SMS list.

Back in Stock

Grow your subscriber list with high-intent shoppers using Postscript's Back in Stock list growth tool and automation. When products on your site go out of stock, shoppers will see a link or banner to sign up for SMS notifications when the item goes back in stock. Instead of losing sales, you can gain a subscriber.


Send the right message, to the right person, at the right time

Postscript allows you to segment and target your messages for just about any use case you can imagine.


With Postscript, you can create subscriber and customer segments that are as narrow as you want. Combine 40 segmentation filters, including historical Shopify data, SMS activity, data from app integrations, area codes, and more to perfectly define who you are targeting.

Automation triggers

Select from over 65 events in the customer journey that trigger an automation to start. This includes keyword replies, checkout started, order created, order in-transit, viewed product, Recharge events, and more.

Trigger and user filters

Get even more specific about the events and subscribers that are targeted in your automations using over 85 trigger filters to define values related to the order (e.g., line items, subtotal price, and total discounts) and 40 user filters to define values related to the subscriber (e.g., keywords triggered, location, number of orders, and previous purchases).


Engage and convert
with two-way messaging

This is where the magic of SMS happens.


Use the visual flow builder to create automation flows triggered at key points in your customer’s journey. With Postscript, you have 65+ trigger events, 85+ trigger filters, and 40 user filters across your tech stack to create automations for just about any use case you can imagine. You can split automations into multiple branches to test or align with subscriber actions. Use one of our many in-app automation templates to get started.


Create automations for: subscriber welcome series, abandoned cart, post-purchase, shipping notifications, subscription management, back in stock, loyalty offers, review requests and so much more.


Manage and respond to text conversations with your subscribers by using the Responses tab in Postscript. Using machine learning, Postscript helps you filter and prioritize conversations based on the sentiment (😁 Positive, 😖 Negative, or Neutral) or the topic (Question, Shipping, Returns, etc.). You can also forward subscriber replies to your support email, or connect Postscript to Gorgias, Zendesk, or another help desk.


Analytics and Reports

Easily see how your SMS marketing program is performing.

Dashboard Analytics

Get real-time revenue and performance data in one place.

Subscriber Analytics

See which of your subscriber sources drive the most opt-ins and revenue.

Messages Analytics

See how all your campaigns, automations, and keywords are performing over time.


Download subscriber and revenue data to analyze in your tool of choice.

Customize your SMS program

Customize coupons, attribution windows, and other important settings to your preference.


Postscript’s dynamic coupons offer complete flexibility to customize the minimum spend requirements, eligible products, start and end dates, and usage limits per customer.

Global UTM parameters

Customize your global UTM parameters for campaigns and automations. Add additional custom parameters.

Short link subdomain

Customize the subdomain of short links that appear in your texts (e.g.,

Contact card

Customize your shop’s contact card with logo, contact name, URL, email, address, and notes.

Attribution windows

Change our default 7-day click and 24-hour view attribution windows to whatever time periods you prefer.

Integrations & API

Connect Postscript to your help desk, email marketing, popup builder, review platform, and more. For more advanced capabilities and use cases, learn about the Postscript API.

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See all integrations

Compliance & Infrastructure

Compliance measures and a platform infrastructure that you can feel good about.

Infrastructure and deliverability

Message deliverability and platform stability are critical parts of any successful SMS platform. At Postscript, we strive to balance compliance regulations with deliverability, thus ensuring that your messages not only follow all of the best practices, but also reach your subscribers. Postscript pre-pays for maximum throughput bandwidth, which means sent messages will reach consumers faster. Our platform is built for scale, with infrastructure redundancies in place to handle traffic spikes (such as during BFCM). This helps ensure that even when the carrier networks are at their maximum, your message won’t get lost in the void. Thanks to sophisticated algorithms and close partnerships with both the carrier networks and our aggregator, Postscript is able to maximize throughput across both short codes and toll free numbers.

Success and Support

Brands love working with Postscript. Don’t take it from us—check out the Wall of Love or browse through the 1,600-plus 5-star reviews on the Shopify App store.


1,800+ 5-star reviews on the Shopify App store.

Live Chat, Email, and Help Center

Our customer experience team is here to answer your questions. Live chat with a real person Monday-Friday, 9:00 AM-9:00 PM Pacific. You can also search through our extensive help center for step-by-step guides and video tutorials.

Onboarding Support

Work with an Onboarding Specialist during your trial to help you build your first campaigns and automations, start growing your list, set up integrations, and more.

Dedicated Support

Work with a dedicated Customer Success Manager to help you strategize your SMS program, review your account monthly, set up integrations, and more. (Available for accounts over $500/month.)

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Ready to make SMS your #1 revenue channel?