Purands vs Postscript

A Postscript alternative for
agentic e-commerce retention

Both decide per customer. The question is where those decisions can land. If Postscript runs your SMS today, here is where the two differ.

Compare features

This page is for Shopify and DTC teams on Postscript weighing a switch. Both ship AI agents that decide per customer, so the usual who-decides question does not separate them.

Postscript's Shopper decides timing, message, offer and cadence per subscriber, today across SMS and RCS. Purands makes the same call across WhatsApp, email, SMS, push and web.

Where Postscript is the better choice

Three cases where we would tell you to stay:

  • You want a low-cost, self-serve start. Postscript's US pricing lists Starter at $0 a month with a $49 USD minimum spend, SMS from $0.009, carrier fees at cost, no contract.
  • You want compliance built into the product. Postscript hard-wires TCPA and carrier rules, and holds campaigns automatically during SMS quiet hours in each subscriber's own timezone.
  • You want to audit what the AI did. Brand Center carries a playground and decision traceability, and Shopper Automations reports test against control on revenue per subscriber.

The table shows where they diverge.

Feature comparison

Purands vs Postscript, capability by capability

Purands vs Postscript
Core feature Native / built-in
Partial Works differently
No Not available
Not stated Not in their public materials
Capability PurandsAgentic PostscriptAgentic, SMS-first
Channels
Email Campaigns
Send personalized email at scale
AgenticYes, launched 2026-09-23
WhatsApp Channel
Native two-way WhatsApp messaging
Native AINot a listed channel
SMS
Text message campaigns
YesYes, core product
Data & Intelligence
Conversational Data Collection
How stated preferences are collected
Free-text chatYes, free-text AI chat
Per-Customer Real-Time Decisions
AI decides channel, timing & message per individual
Real time, five channelsReal time, SMS/RCS
Dynamic Discount Per Customer
How a discount is chosen, and who sets the amount
Propensity AIYes, selects per subscriber
Purchase Intent Scoring
Score of each customer's likelihood to purchase
Scored dailyNot stated publicly
Automation
Journey Building
Who sets the path each customer takes
Agent decidesBuilder, or AI decides
Engagement Fatigue Prevention
Automatically stops over-messaging individual customers
Cross-channelYes, automatic and manual
Inventory Context in Decisions
Campaign logic reads live stock levels
Built-inYes, three triggers
Pricing & Access
Pricing Model
What the bill scales with
Quoted to your scalePlan + usage, USD
SMB & DTC Accessible
How a smaller brand gets started
Yes, demo-led pilotSelf-serve, AI sales-led

Postscript details verified on 23 September 2026 against Postscript's own product, pricing and help pages. Each cell carries its source in the page source.

See the full platform comparison or the Klaviyo breakdown.

The Purands difference

Where Purands is different

Pillar 01
01

One Decision, Every Channel

Postscript's Shopper decides per subscriber, today across SMS and RCS, with email launched 23 September 2026. Purands makes that call across WhatsApp, email, SMS, push and the on-site assistant.

How Postscript does it
Shopper weighs each subscriber, then picks moment, copy and offer → SMS or RCS
How Purands does it
Purands AI → Weighs this customer's intent and last contact, then picks moment, channel and offer.
Pillar 02
02

WhatsApp, Natively

Postscript lists SMS, RCS and email; WhatsApp appears nowhere in their sitemap or their 398 help articles. Purands runs WhatsApp natively, with Meta template approval managed for you.

Pillar 03
03

Outside the US and Canada

Postscript's listed rates cover the US 50 states and Canada. International SMS is $0.25 on three plans, with no MMS; Enterprise rates are negotiated. Purands quotes one price for every channel, plus Meta's WhatsApp fees.

FAQ

Switching from Postscript

What brands ask before switching.

Subscriber lists and segments export to CSV, with the opt-in timestamp. We found no documented export for Shopper conversation history or for the memories held in their context platform.
Postscript documents porting a number in from Klaviyo, but nothing about porting one out. Ask them before you move. What carries over is confirmed in the demo.
Little on decisioning. Shopper decides timing, copy, offer and cadence per subscriber, today across SMS and RCS. Purands decides timing, channel, offer and which approved message fits, across WhatsApp, email, SMS, push and web.
Postscript lists international SMS at $0.25 on Starter, Growth and Professional, with no MMS outside the US, Canada and Puerto Rico. Enterprise and contracted rates are negotiated, not published.
Live on Purands

What brands running Purands report

92%
Support queries resolved without handoff
3×
Win-back rate on lapsed customers
30d
Typical time to visible ROI
11%
Uplift in returning customers within 60 days

See the difference in 30 minutes

Walk through a live demo with your own customer data. No slides, no generic pitch - just Purands doing its thing on your brand.

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