Postscript Expert Postscript SMS Marketing Agency for E-Commerce
Postscript is the go-to SMS platform for Shopify brands. We help you build revenue-driving text message campaigns and automations — and integrate them with a best-in-class email strategy.
Why You Need an Agency for Postscript
SMS Strategy Is Different from Email
SMS is intimate, immediate, and expensive to get wrong. Over-sending destroys subscriber lists. Under-sending wastes potential. We find the balance that maximizes revenue per subscriber.
Compliance Is Non-Negotiable
TCPA, CTIA, and carrier regulations change constantly. One violation can cost thousands in fines. We stay on top of compliance so you can focus on selling.
SMS + Email Coordination Is Critical
Running SMS and email as separate channels wastes money and annoys customers. We build unified strategies where each channel reinforces the other.
What We Do on Postscript
SMS Automation Flows
We build Postscript automations — welcome sequences, abandoned cart texts, shipping updates, and winback campaigns — timed and triggered to maximize conversion without fatigue.
Campaign Strategy & Execution
Flash sales, product drops, VIP exclusives — we plan and execute SMS campaigns with segmentation, personalization, and proper timing to hit revenue targets.
Subscriber Growth & Compliance
We build compliant opt-in flows using popups, keywords, and checkout integrations, growing your SMS list with high-intent subscribers.
Cross-Channel Email + SMS Strategy
We integrate Postscript SMS with your email platform (ideally Klaviyo) to build coordinated customer journeys that use the right channel at the right time.
Expert Postscript Email Marketing
Postscript is excellent for SMS, but running email and SMS on separate platforms creates silos. Klaviyo's native SMS eliminates this problem — unified data, unified flows, one platform. We can migrate your Postscript SMS strategy into Klaviyo for a truly integrated approach.
Get a Free Audit →How Postscript Compares
| Feature | Postscript | Klaviyo |
|---|---|---|
| SMS Feature Depth | Excellent | Good |
| Email Capabilities | None | Excellent |
| Unified Data (Email + SMS) | Via Integration | Native |
| Shopify Integration | Excellent | Excellent |
| Conversational SMS | Excellent | Basic |
| Total Cost (Email + SMS) | Higher (2 tools) | Lower (1 tool) |
Results on Postscript
FAQ
Postscript has deeper SMS-specific features like conversational texting and advanced keyword campaigns. However, Klaviyo SMS offers the advantage of unified email + SMS data in one platform. The right choice depends on whether SMS-first features or unified data matters more to your brand.
Absolutely. Many of our clients run Postscript for SMS and Klaviyo for email. We coordinate both platforms to ensure a seamless customer experience.
We use a combination of checkout opt-ins, popup forms, keyword campaigns, and social media CTAs — all TCPA compliant. Quality matters more than quantity with SMS.
At minimum: welcome text, abandoned cart, shipping confirmation, and post-purchase review request. Beyond that, we add VIP segmentation, winback, and browse abandonment based on your volume.
If your primary goal is unified customer data and simpler operations, yes. If you rely heavily on Postscript's conversational SMS or advanced keyword features, it may be worth keeping. We help you make the right call.
Ready to Maximize Postscript?
Get a free Postscript account audit and see where you're leaving revenue on the table.