Not sure if Klaviyo or Postscript is the smarter move for your SMS marketing? You’re not alone. Both platforms promise powerful tools, smart automation, and big returns, but which one actually delivers when it comes to real-time messaging, customer data, and revenue? Don’t worry, this guide has all the answers.
We’ll explore:
- The secret sauce behind each platform’s unique features
- Real user insights to help you make an informed decision
- Which platform is a true game-changer for your SMS marketing needs
TL;DR
| Feature | TxtCart | Klaviyo | Postscript |
|---|---|---|---|
| Pricing | Starts at $29/mo | Starts at $60/mo | Starts at $100/month |
| Free Trial | Yes, 14-day trial | Yes | Yes |
| SMS Marketing Features |
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|
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| Data Security & Compliance | Built-in TCPA & GDPR compliance | Built-in TCPA, CPPA & GDPR compliance | Built-in TCPA, CTIA, and carrier compliance |
| Integrations | Shopify, Klaviyo, Alia, ChargeFlow, Zendrop and more | Shopify, Salesforce, Wix, Zapier and more | Shopify, Zapier, Zendesk, Klaviyo, Mailchimp and more |
| Customer Support & Community | World-class customer support, known for its responsiveness and fast replies | Users report friendly and helpful support, though some note slower responses at scale | Quick, friendly, and reliable customer support. |
| Rating | 4.8/5 (297 reviews) | 4.6/5 (3,366 reviews) | 4.8/5 (1,888 reviews) |
Which One Should You Go With?
- Klaviyo: Best for eCommerce brands wanting an all-in-one email and SMS marketing platform. With powerful segmentation, predictive analytics, and deep Shopify data integration, Klaviyo is ideal if you’re running complex campaigns. Just note—its pricing model may not suit every budget.
- Postscript: A solid choice for Shopify brands seeking user-friendly bulk SMS, advanced segmentation, and MMS marketing within a mid-range budget. If you’re scaling targeted campaigns efficiently, Postscript fits the bill.
- TxtCart: Perfect for Shopify brands looking to boost ROI effortlessly. TxtCart uses conversational AI to send human-like texts that recover carts, answer questions, and drive real-time revenue. With a $29/mo starting price, 10x ROI guarantee, and hands-on support, it’s a smart, affordable choice for fast-growing Shopify stores.
Klaviyo Overview
Klaviyo, an SMS and email marketing platform, is built to help ecommerce brands grow by turning customer data into personalized marketing messages. With tools like predictive analytics, detailed Shopify data integration, and automation, Klaviyo gives businesses the power to create targeted campaigns that boost revenue and customer engagement.
Key features
- Customer data insights: Use real-time customer and Shopify order data to create highly targeted messages.
- Predictive analytics: Forecast future customer actions like the next purchase date or churn risk to send smarter, more timely messages.
- Advanced segmentation: Build dynamic segments based on purchase history, browsing behavior, and engagement levels.
- Automated Campaigns: Set up flows like welcome series, cart recovery, and post-purchase messages with ease.
- Pre-built templates: Quickly create professional email and SMS messages using ready-to-go templates, designed to convert.
Pricing
Klaviyo offers a free plan. Paid plans start at$45/month for email only, and $60/month for the Email + SMS bundle, which includes 15,000 emails and 1,250 SMS/MMS credits monthly.
Postscript Overview
Launched in 2017 by Adam Turner and Alex Beller, Postscript is a top SMS marketing tool designed for Shopify stores. It provides features like real-time analytics, segmentation, and pop-ups to grow SMS lists, helping ecommerce brands run personalized campaigns that boost ROI and customer engagement.
Key Features
- Advanced segmentation: Use 45+ filters like purchase history, SMS activity, and customer data to create highly targeted SMS marketing campaigns.
- Automated messaging: Automate SMS messages with 65+ trigger events, such as cart abandonment or order updates, to respond to customer actions in real time.
- MMS support: Add images and GIFs to your text message strategy to capture attention and boost engagement.
- Bulk messaging: Run large-scale SMS campaigns to reach more subscribers, increase traffic, and drive more sales.
- Short codes: Use easy-to-remember short codes for faster, seamless customer connection and communication.
Pricing
Postscript offers a free Starter plan with a $25 minimum spend, followed by the Growth plan at $100/month and the Professional plan at $500/month. For high-volume needs, the Enterprise plan offers custom pricing based on business requirements.
What Users Like About Klaviyo
- Easy to use, even for beginners: Reviews show that even first-time users find the platform intuitive for building email and SMS campaigns.
- Advanced segmentation options: Users love how deeply they can segment their subscribers using behavior, messaging usage, and purchase data to boost engagement.
- Powerful analytics and reporting: Reviews reflect how helpful the platform’s data and dashboards are for making real-time marketing decisions.
Considerations before going with Klaviyo
- Pricing model frustration: Many users feel they are being overcharged for inactive customer profiles, calling the new pricing unfair and unsuitable for small to mid-sized businesses.
- Lack of refunds: Multiple reviews mention frustration with Klaviyo’s strict no-refund policy, even when cancellations happen right after billing.
- Slow customer support: Reviews repeatedly mention slow, unhelpful, or no responses—even on paid plans.
Read More: Klaviyo Alternatives
What Users Like About Postscript
- Helpful support team: Users frequently highlight the fast and friendly support that makes resolving issues with SMS tools hassle-free.
- User-friendly platform: Many love how easy it is to set up, navigate, and schedule SMS messages without hassle.
- Customizable features: Postscript gets credit for letting users tailor templates and segments to send more personal, targeted messaging.
Considerations before going with Postscript
- Automation glitches: Some users face issues with automated SMS messages, causing interruptions in SMS marketing flows.
- Limited global support: Non-U.S. users report high carrier fees and limited functionality, limiting the effectiveness of international messaging.
- Unexpected billing: Reviews mention confusion around free plans and unexpected costs due to usage-based SMS billing models.
“Honestly like a money printer for us…” said TxtCart customer, Gamenetics. “Within the first 45 days we’ve been able to add an additional $8,500 in revenue to our bottom line with only a small list of SMS subscribers.”
$14,089.17
SMS revenue so far...
66
Orders Attributed to SMS
19.23x
SMS Attributed ROI
Read More: We Tried 9 Postscript Alternatives for Shopify – Here’s #1
Word on the Street about TxtCart is…
Here’s a quick look at what customers are saying after generating $50M+ in revenue through TxtCart’s conversational SMS marketing.
“Brings in free money…”
“Within the first month of using it, it brought in over $10k in revenue across all my stores. No point not to have this app downloaded, it’s easy to set up…”
LunivA
Shopify App Store
“110% recommend this app…”
“110% recommend this app and shout out to Sara for the quick and easy support when I needed it.”
CurvCentral
Shopify App Store
“It's like having a dedicated sales team…”
“It’s like having a dedicated sales team sending personalized messages.”
1THRIVE
Shopify App Store
“Honestly like a money printer for us…”
“Within the first 45 days we’ve been able to add an additional $8,500 in revenue to our bottom line with only a small list of SMS subscribers.”
Gamenetics™
Shopify Marketplace
TxtCart is the #1 Klaviyo/Postscript Alternative
Best for: Revenue-obsessed Shopify stores who want to make upselling, cart recovery, customer service, and SMS revenue a priority to recover $10,000s in lost revenue.
TxtCart is a leading SMS marketing platform designed for eCommerce brands. More than just reminders, it creates human-like conversations that boost conversions and recover lost sales. Like a virtual sales rep, TxtCart connects with customers, brings back abandoned carts, and delivers real, engaging experiences—making it a smart choice for growing businesses.
TxtCart is Known to Drive Millions for Top eCommerce Brands
Joyride Harness: Generated over $1.8M in SMS-attributed revenue with Txtcart.
Organi Hair: Reached $1M+ in revenue through Txtcart’s SMS strategy.
CROSSNET: Achieved $453,185 in SMS revenue with a quick 10-minute setup on Txtcart.
Features that make TxtCart #1
- Conversational AI for SMS: TxtCart goes beyond one-way texts by having real, human-like conversations. From abandoned cart recovery to answering questions, it guides customers toward purchases with ease.
- Performance & revenue tracking: Want to know if your SMS marketing is working? TxtCart’s dashboard shows real-time data on conversions, top products, and revenue, giving you a clear view of what’s driving results.
- Smart campaigns & compliant scheduling: With TxtCart, you can plan your campaigns with TCPA-compliant timing and avoid late-night messages. Plus, the built-in AI assistant helps you write SMS copy that converts and keeps customers engaged.
- Automated SMS Flows: One-click automation triggers SMS messages based on customer actions, improving efficiency and increasing ROI.
What new users ❤️ about TxtCart
10x ROI guarantee for eligible stores.
Quick 5-10 minute setup that’s intuitive and hassle-free.
32x cost savings vs human agents using conversational AI.
Highly praised customer support from dozens of user reviews.
Pricing
TxtCart offers a 14-day free trial for new users. The Starter plan is priced at $29/month with a 15% commission on recovered carts, while the Enterprise plan—at $499/month—is built for high-volume stores, offering 24/7 support, custom workflows, and a lower 2.5% commission.
