Postscript
by Postscript
Agentic retention marketing for ecommerce on SMS, RCS and email
Reviewed by the the30top research team · Last reviewed 2026-10-27
Overview
Postscript runs retention marketing across SMS, RCS and email and adds an AI agent that talks to shoppers, plus abandoned cart flows. The Starter plan is $0 a month but carries a $49 monthly minimum spend, and the AI agent is $699 per month. Message costs are metered per SMS and MMS, so bills grow with send volume.
Our verdict
Postscript is a solid SMS-first retention platform with an AI agent bolted in. The agent pricing makes sense only once SMS is a real revenue channel.
Best for
Shopify brands that already run SMS and want an AI shopping agent and cart recovery.
Avoid if
You want a standalone on-site chat assistant or have a small list.
Pros
- Public plan and usage pricing
- Strong DTC customer list
- Compliance built into sending
Cons
- AI agent costs $699 per month
- Usage fees add up with volume
- Centered on SMS marketing
Key capabilities
Frequently asked questions
How much is the Postscript AI agent?
The AI agent is $699 per month, plus per-message rates from $0.003 to $0.30.
Is there a free trial?
Yes. A $100 credit for the first 30 days.
What does Starter cost?
$0 per month with a $49 monthly minimum spend, plus per-message fees.