Pricing
freemium
Best For
Shopify stores launching their first SMS marketing program
Rating
8.5/10
Last Updated
Mar 2026
TL;DR
Postscript is the SMS marketing tool that lives and breathes Shopify. Unlike Attentive or Klaviyo, it's built exclusively for Shopify stores — no other platforms supported. The free plan with pay-per-message pricing makes it accessible for small stores, while paid plans ($25-500/month) add automation and AI features. For Shopify merchants who want SMS done right without enterprise complexity, Postscript hits the sweet spot.
What is Postscript?
Shopify-Only, and Proud of It
Postscript made a deliberate choice: build for Shopify and nothing else. Founded in 2018, they've raised $65M and serve over 18,000 Shopify brands. That singular focus means the Shopify integration is deeper than any competitor. Product data, order history, customer tags, and Shopify Flow — everything syncs natively. No janky workarounds needed.
Accessible Pricing for Growing Stores
Here's what makes Postscript different from enterprise SMS tools. The Starter plan is free — you only pay per message ($0.015/SMS, $0.045/MMS). That means a Shopify store doing $50K/year can start with SMS marketing without a monthly platform fee. As you grow, the Growth ($25/mo) and Professional ($500/mo) plans add automation, AI tools, and dedicated support.
SMS Automation and AI
The automation builder covers the standard e-commerce flows: welcome series, abandoned cart recovery, post-purchase follow-ups, and win-back campaigns. Postscript's AI SMS tool can draft messages matching your brand tone and optimize send times. Segmentation pulls from Shopify data directly — purchase frequency, average order value, product preferences, and more.
Limitations to Know About
Shopify-only means if you're on WooCommerce, BigCommerce, or any other platform, Postscript isn't an option. Period. MMS messages cost 3x more than SMS, which eats into margins for image-heavy campaigns. The analytics are solid for SMS metrics but don't match the depth of tools like Attentive. Customer support quality has gotten mixed reviews as the company scaled. And the AI features, while useful, occasionally produce messages that need editing.
Pros and Cons
Pros
- Deepest Shopify integration of any SMS marketing tool on the market
- Free starter plan with pay-per-message makes SMS accessible for small stores
- TCPA compliance handled automatically with built-in opt-in and opt-out flows
- Segmentation uses native Shopify data — purchase history, tags, and order value
- AI message drafting helps smaller teams create on-brand SMS campaigns faster
- Shopify Flow integration enables custom triggers without code
Cons
- Shopify-only — zero support for WooCommerce, BigCommerce, or other platforms
- MMS messages at $0.045 each add up fast for image-heavy campaigns
- Analytics are decent but not as deep as larger competitors like Attentive
- Customer support quality has been inconsistent during rapid company growth
- AI-generated messages sometimes need manual editing before sending
Postscript Pricing
Starter
- Pay-per-message only ($0.015/SMS)
- Unlimited subscribers
- Campaign sending
- Basic pop-ups
- Shopify integration
- Email support
Growth
- Everything in Starter
- Automation flows
- Advanced pop-ups
- Keyword triggers
- Segmentation
- Priority support
Professional
- Everything in Growth
- AI SMS assistant
- Advanced analytics
- Branded short URLs
- API access
- Dedicated CSM
- Custom onboarding
Pricing last verified: March 22, 2026
Who is Postscript Best For?
- Shopify stores launching their first SMS marketing program
- Small to mid-size Shopify merchants wanting SMS without big platform fees
- DTC brands on Shopify needing automated abandoned cart and post-purchase texts
- Shopify Plus stores scaling SMS as a top-three revenue channel
Technical Details
The Bottom Line
Postscript scores 8.5/10. It stands out for deepest shopify integration of any sms marketing tool on the market. Best suited for shopify stores launching their first sms marketing program. Keep in mind that shopify-only — zero support for woocommerce, bigcommerce, or other platforms. There is a free plan to get started.
Frequently Asked Questions
Based on editorial analysis
