Create and execute SMS programs to drive incremental revenue by engaging customers via text message
With Postscript, drive conversations and conversions across all stages of the customer journey. Whether 1:1 or at scale, Postscript assures your texts are customized, conversational, and compliant. Use SMS Marketing to grow your list, develop your message strategy, deliver customer service, and drive purchases. Postscript AI works harder for you by staying on-brand, unlocking customer insights, and driving revenue with Brand Center, Infinity Testing and Shopper.
Categories:
Abandoned cart, SMS marketing
Integrations:
Core Features:
Languages:
Is Postscript worth it?
A capable SMS platform whose customer success team does much of the heavy lifting — with reporting reviewers say overstates results.
Across 7 verified merchants and agency operators, 79% are satisfied with Postscript. The strongest praise goes to the people rather than the software: one reviewer describes their CSM monitoring campaigns through Black Friday and proactively building flows in the brand's voice. The platform itself is quick to work with — messages can go out in minutes, even from a phone — segmentation and creative suggestions are useful, and one merchant found it converting better than Klaviyo's SMS. The caution is about measurement. Reviewers describe reporting as overstated, comparable to Klaviyo's, with one relying on Triple Whale to understand real performance. Several report SMS results declining over the past year, though they attribute much of that to channel saturation rather than the platform. Pricing is high for smaller senders wanting better-fitted packages, the interface is described as inferior to Attentive with some outdated sections, and there's no conversational reply or push notification capability. The verdict: a solid SMS platform where the account team is a genuine part of what you're buying. Just measure results independently rather than trusting the dashboard.
SIGNAL FROM THE PANEL
Pros & cons from 7 verified Postscript reviews
Strong customer success team
3
Easy to send campaigns fast
2
Converts well
2
Segmentation & creative ideas
2
Continual feature improvements
2
Overstated reporting
3
Declining channel performance
3
Expensive for smaller senders
2
Dated UI vs competitors
1
No conversational replies
1
COST
How much does Postscript cost?
Postscript is free to install, with tiers at $100 and $500/month. Our panel's practical advice: validate the reported results against an independent source — several reviewers describe in-platform reporting as overstated and use Triple Whale or similar to understand true incremental performance before scaling spend.
Filter Reviews
Operator reports
79
%
Recommended
(
7
reviews
)
What merchants say about this app
AI SUMMARY
Merchants find Postscript an easy, fast SMS tool, simple enough to send from a phone, with good segmentation, a standout customer success manager, and steady feature improvements, and some say it converts better than Klaviyo's SMS. Complaints include pricing that feels high without tailored packages, a campaign-first design with weak two-way chat, a UI several rate below Attentive, and, for some, declining opens and conversions over time plus reporting they consider overstated.
Frequently asked questions about Postscript
Is Postscript worth it?
79% of 7 verified Shopify merchants are satisfied with Postscript. The customer success team draws the strongest praise; reporting accuracy is the main reservation.
Is Postscript free to use?
It's free to install, with tiers at $100 and $500/month. Smaller senders describe the pricing as expensive and want packages better fitted to their volume.
What are the main complaints about Postscript?
Reporting that reviewers describe as overstated, declining channel performance over the past year, high cost for smaller senders, a dated interface versus Attentive, and no conversational reply capability.
Does Postscript integrate well with Shopify?
Yes — it connects to Shopify Checkout and customer accounts, and integrates with Klaviyo, Gorgias, Privy, Zapier and Triple Whale, which several reviewers use to verify attribution.
What is the best Postscript alternative?
Attentive is the direct comparison on our panel — reviewers rate its interface higher — while Klaviyo is the choice for merchants wanting SMS and email in one platform.








