Klaviyo vs. Postscript

Go beyond SMS.
How Klaviyo beats Postscript

With Klaviyo CRM, you can go beyond SMS, combining it with email and other channels for more powerful, personalized campaigns in a single platform. With Postscript, you can’t.

Join these brands growing with Klaviyo SMS and email

Boost revenue with the platform that shows you the full picture

Deeper personalization

Send more targeted, timely messages powered by your customer data.

Omnichannel optimization

Coordinate experiences across email, SMS, push, and more to increase engagement.

Impact-maximizing insights

Reveal hidden opportunities and track performance with the clarity you need.

Compare Klaviyo vs Postscript—only one checks all the boxes

Klaviyo

Postscript

Optimization across multi channels (email, SMS, mobile push & WhatsApp)

Channel affinity

Extensive visibility into customer actions

In-app peer benchmarks

Detailed deliverability insights

350+ pre-built integrations

RCS (beta)

SMS compliance tools built in

Enterprise-level support & services

Consolidate with Klaviyo and grow like these brands

Klaviyo includes 350+ pre-built integrations. Postscript doesn’t come close.

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DEEPER PERSONALIZATION

Deliver experiences that keep your subscribers hooked

Build deeper connections
Comprehensive customer profiles show you each subscriber’s full history in a single view, including the latest real-time data.

Smarter segmentation
Quickly create precise audience segments based on any data you’ve gathered, including engagement metrics from every channel.

350+ pre-built integrations
Power deeper personalization by pulling in all the data you need from platforms across your tech stack.

OMNICHANNEL OPTIMIZATION

Sharpen your strategy across every channel

Coordinated customer journeys
Build more effective experiences that unfold cohesively across email, SMS, mobile push, and beyond.

Preferred channels
Use customer behavior to predict and automatically send messages on each customer’s preferred channel with AI-powered channel affinity.

Automated testing
A/B test tactics across channels, and automatically send out the winning version of each email and SMS message.

AI optimization
Enhance every step of the customer journey with built-in AI tools that help unleash your creativity and fine-tune your strategy.

Graphic represents Klaviyo's AI-powered channel affinity tool.
IMPACT-MAXIMIZING INSIGHTS

Drive more revenue with clarity and confidence

Cross-channel attribution
No more double-counting sales. Track email and SMS together for a more accurate view of each message’s impact.

Multi-touch attribution
Better understand what gets your customers to convert by crediting every interaction, not just the final click.

Clear deliverability insights
Demystify email and SMS deliverability with detailed metrics that help reveal any obstacles limiting your reach.

Peer benchmarks
Discover which opportunities to prioritize by comparing your performance metrics against data from peer brands.

Klaviyo by the numbers

SMS users

growth in GMV using Klaviyo SMS + email*

Additional resources

Your guide to SMS compliance

Learn the essential compliance requirements and best practices for SMS in 2025.

2025 SMS benchmarks

See how your SMS marketing performance compares with benchmarks by industry.

SMS guide for campaign success

Discover the 3 key goals you need for long-term success with your SMS marketing.

Want to learn more about growing with Klaviyo?

*Business GMV growth based on data from ecommerce platforms. Other factors may also have contributed to an increase in gross merchandise value (GMV).