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
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
Consolidating email, SMS, and sign-up forms with Klaviyo empowers Tatcha to build a cohesive customer experience.
Discover how makeup and skincare brand Laura Geller grew quarterly SMS revenue 3.9x in its first year with Klaviyo SMS.
By switching their SMS from Postscript to Klaviyo, Happy Wax was able to consolidate their channels in a single platform and reduce their total cost of ownership.
Klaviyo includes 350+ pre-built integrations. Postscript doesn’t come close.
















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.
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.
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
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).