by PostscriptPartner
With Postscript, drive conversations and conversions across all stages of the customer journey. Whether 1:1 or at scale, Postscript assures your te...
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.
Starter
Free
Growth
$100 /mo
Professional
$500 /mo
Used by 23,019 Shopify stores
Data sourced from StoreLeads
Postscript is free to install, and all paid plans include a $100 credit for your first 30 days to use toward message and carrier fees. The Starter plan has a $49/month minimum spend (usage-based at $0.009/SMS + carrier fees), while Growth is $100/month and Professional is $500/month. There is no permanently free tier — after your trial, you must meet the Starter plan's monthly minimum even if you send very few messages.
Yes. Postscript natively integrates with Klaviyo, Gorgias, Zapier, Privy, Sumo, ReCharge, and Shopify Checkout (including Shopify Plus). It also connects to Shopify's Customer Accounts extension and supports custom integrations on the Professional plan. For more advanced use cases, a public API is available.
Support quality is a mixed point in recent reviews. Many merchants praise individual support reps and the live chat experience, but several long-term users have noted a decline in 2025–2026, citing slow email responses (days to reply) and reduced live chat availability, with AI increasingly replacing human agents. Live chat and email support are only included on the Growth plan ($100/month) and above; the Starter plan offers Help Center access only.
Postscript is designed for non-technical merchants. It features a visual flow builder for creating multi-step automations (welcome series, abandoned cart, post-purchase) without writing any code. Merchants report that onboarding is straightforward, with extensive tutorials and a help center available. The Professional plan ($500/month) includes a dedicated onboarding specialist for a more guided setup.
Postscript takes a product-led approach to compliance — all features and list-growth tools are built to follow TCPA guidelines, mobile carrier requirements, and other regulatory standards. Compliant opt-ins, quiet hours, and unsubscribe handling are enforced at the platform level. Postscript also has an in-house legal team and is a leader within the Ecommerce Innovation Alliance, actively shaping common-sense ecommerce SMS policies.
Postscript is primarily built for US and Canada — their published per-message rates explicitly cover 'US - 50 States/Canada only,' and approximately 87.9% of stores using the app are US-based. International stores outside the US/Canada may face limited functionality, different carrier fees, or lack of support. If your store primarily serves a non-North American audience, Postscript may not be the best fit.
Postscript reports an average 34x return on SMS spend across its customer base, with brands also seeing a 22% lift in online revenue attributed to Postscript SMS. Individual results will vary significantly based on list size, industry, and messaging strategy. Postscript offers a 4x ROI guarantee on all plans and a 30-day free trial with $100 in credits so you can test performance before committing to a paid plan.