Why 20,000+ brands choose Postscript
When we consistently deliver better list growth, higher-performing products, and go above and beyond on strategy and compliance, it’s clear why so many brands have made the switch.
The foundation
Legacy CDPs just store your data. Postscript’s ACP puts it to work. The Agentic Context Platform (ACP) holds all of your brand and customer context, allowing AI agents to read from it and act on it at the individual subscriber level. Every message sent and subscriber action, across every channel, makes the whole platform smarter. Plus, it’s included at no extra cost with every plan.
Klaviyo’s CDP comes as an extra cost, and Attentive doesn’t offer it.
Shipping at AI speed
For years, we've been first to market with the biggest innovations in SMS:
We invented Onsite Opt-in (patented, US 12,101,314) so brands could grow their lists without sending shoppers off-site.
We invented Infinity Testing so brands could stop guessing which message wins.
We brought conversational marketing to SMS while others still didn’t believe in it. Shopper has sent 10M messages and is growing 20% each month. That scale is 10x larger than Klaviyo’s own reports of their conversational product.
Both Klaviyo and Attentive are built on 8-13 year old software, with AI bolted on top, making innovation slow and expensive.
Postscript is an AI-native platform rebuilt in 2025, allowing us to build faster than ever.
Strategy built on what works
You don’t need to be a celebrity brand to get treated like one. Our team is dedicated to giving you the guidance and strategy you need to make more money from your retention marketing program, no matter how small or large your brand is.
Dedicated CSM support: Get expert guidance from someone who knows your goals, your brand, and how to scale your retention program with confidence.
Postscript Plus: Work with SMS strategists who help you plan, launch, and optimize every part of your program. Brands working with a Postscript Plus Strategist see it directly: shops that migrate from Klaviyo to Postscript average +5% in order volume and +10% in revenue.
"We moved from Klaviyo to Postscript for the increased functionality and have stayed for the high level of service from the Postscript team. As a small but fast growing direct-to-consumer ecommerce brand we have partnered with several third party platforms for multiple areas of the business and Postscript delivers a higher level of customer service than any of them, and it's not close!"
Josh White
Marketing Director
"Postscript Plus enables us to get more out of our SMS program. Our strategist is truly an extension of our internal team. Plus helps us unlock new segments, launch new automations, and level up our overall strategy. Since joining Postscript Plus, we have seen significant revenue growth and rapid list expansion, and we haven’t looked back."
Noah Pine
Sr. Retention Manager
Lower cost of ownership
Lower rates and no profile fees: The most competitive SMS rates and zero profile fees—we don’t punish you for growing your list.
No hidden costs: Pay after you send. No prepaid balances, expiring credits, overages, or auto-upgrades. Carrier fees pass through at cost on their own line - so you know what you are paying for.
The data layer is included: The Agentic Context Platform comes with every plan. You pay to message your customers, not to store your data.
Every message earns more: Better strategy and the highest-performing products on the market put more revenue behind every send.
We have your back
We are the compliance and regulatory leaders in the space, going above and beyond built-in guardrails. In 2023, we founded the Ecommerce Innovation Alliance, a nonprofit advocacy group. They educate lawmakers, defend brands from harmful legislation, and publish resources to help ecommerce businesses like yours stay compliant and ahead of legal changes. Every Postscript customer gets a free EIA membership worth up to $50,000 annually.
Postscript customers are the least sued in the industry by far on common quiet hours cases. 5x more likely to be sued on Klaviyo and 11x on Attentive.
Make more money with Postscript
Hear from brands who made the switch
"Making the switch from Attentive to Postscript for Lomi was the best decision we made for SMS. Postscript Plus was one of the main reasons we made the switch. The team that we work with is extremely creative when it comes to coming up with ideas for campaigns or automations and they’re very responsive if we happen to have any last minute campaigns or changes."
Amanda Schnitzler
Growth Manager
"They feel like a true extension of our team. We trust that they are really tackling SMS as if our company were their own"
Danae Young-Lagoeiro
Director of Retention Marketing & Customer Service
Migrations are easier than you think
Our team has handled thousands of migrations end to end, setting you up for success from the start:
Program build or replication. We recreate your existing Klaviyo or Attentive setup — or build something better: popups and list-growth tools, customer journeys, transactional messaging, and Postscript AI implementation.
List transfer support. Your subscribers and your segmentation come with you, intact.
Compliance review. A TCPA defense review plus best-practice recommendations, so you switch platforms without inheriting risk.
Carrier registration and go-live readiness. Number verification and website, Terms of Service, and Privacy Policy setup to get you approved to send.
Number transfers. Dedicated short code and toll-free number transfers, or new number requests if you're starting fresh.
Launch strategy. A new-number launch campaign and initial messaging plan, so day one on Postscript is a revenue day, not a rebuild day.
Integrations and technical support. We connect your stack and solve the technical edge cases with you.
Team training and enablement. Your team learns the platform before you start sending.
Compare Postscript to Klaviyo and Attentive where it really matters
