Comparison··11 min read

Attentive vs Postscript 2026: Best eCommerce SMS Platform?

Two of the biggest names in eCommerce SMS marketing — but they serve very different brands. Attentive dominates at the enterprise DTC level. Postscript owns the Shopify mid-market. Here's how to choose.

Choose Attentive if...
  • You need best-in-class subscriber growth tools
  • You want SMS + email in one platform
  • You're a mid-market to enterprise DTC brand ($5M+ revenue)
  • You sell on multiple platforms (not just Shopify)
  • AI-driven personalization is a priority
Choose Postscript if...
  • You're 100% on Shopify and want native integration
  • You're under $5M revenue and want affordable pricing
  • You already use Klaviyo for email
  • You want simpler setup and faster time-to-value
  • Shopify-specific triggers matter (collections, tags, metafields)

Platform Overview

Attentive

4.7

The enterprise DTC SMS platform

Founded in 2016, Attentive became the market leader in SMS marketing for eCommerce by pioneering two-tap mobile opt-ins and building the most sophisticated subscriber acquisition tools available. Used by brands like Kate Spade, CB2, and Pura Vida. Strong on AI, personalization, and cross-channel (SMS + email).

Founded:2016
Best For:Mid-market to enterprise DTC brands
Pricing:Custom (typically $400-500+/mo)
Full Attentive Review →

Postscript

4.6

The Shopify SMS specialist

Founded in 2018, Postscript built SMS marketing natively on top of Shopify's data model. Deep integration means all Shopify events, segments, and customer data flow directly into SMS automations. Popular with DTC brands in the $500K-5M range. Known for excellent Shopify support and transparent pricing.

Founded:2018
Best For:Shopify brands ($500K–$5M revenue)
Pricing:Starts at $100/mo
Full Postscript Review →

Head-to-Head Comparison

Attentive wins: 4Postscript wins: 2Ties: 3

Shopify Integration

Postscript ✓
Attentive
Strong — supports multiple platforms
Postscript
Native — purpose-built for Shopify

Postscript wins for pure Shopify brands

Subscriber Growth Tools

Attentive ✓
Attentive
Industry-leading (two-tap, identity resolution, AI optimization)
Postscript
Solid opt-in widgets, keyword opt-ins

Attentive is the clear leader here

SMS Automation

Tie
Attentive
Advanced AI send-time + personalization
Postscript
Full eCommerce flows, Shopify-native triggers

Both cover all core eCommerce flows

Pricing (entry)

Postscript ✓
Attentive
$400-500+/mo (custom quotes)
Postscript
$100/mo Starter

Postscript significantly more affordable at entry

Compliance Tools

Tie
Attentive
Full TCPA, 10DLC, smart quiet hours
Postscript
Full TCPA, 10DLC, smart quiet hours

Both handle compliance well

Email + SMS Unified

Attentive ✓
Attentive
Yes — SMS + email in one platform
Postscript
SMS only (integrate with Klaviyo for email)

Attentive wins if you want unified cross-channel

AI / Personalization

Attentive ✓
Attentive
AI Journeys, predictive send time, smart segmentation
Postscript
Good segmentation, less AI-forward

Attentive ahead on AI-driven optimization

Customer Support

Tie
Attentive
Dedicated CSM (enterprise accounts)
Postscript
Responsive support + Shopify community

Both have strong support cultures

Brand recognition

Attentive ✓
Attentive
Most recognized eCommerce SMS brand
Postscript
Well-known in Shopify ecosystem

Attentive has broader market recognition

Pricing Comparison

Pricing is one of the biggest differentiators — Attentive is enterprise-priced while Postscript starts affordable and scales with usage.

Attentive Pricing

Attentive uses custom enterprise pricing. They don't publish rates publicly.

  • Typical entry: $400-500/month for small brands
  • Annual contracts standard
  • Includes subscriber growth tools + automations + analytics
  • Message credits purchased separately or bundled
  • Email add-on priced separately

Postscript Pricing

Starter

Up to $1K revenue attributed, core automations

$100/mo
Growth

Up to $4K revenue attributed, advanced automations

$500/mo
Professional

Up to $12K revenue attributed, priority support

$1,500/mo
Enterprise

Unlimited revenue attribution, dedicated CSM

Custom

SMS messages billed per message sent (typically $0.01–0.015/msg)

Who Should Choose Each Platform?

Choose Attentive when:

Revenue $5M+ and ready for enterprise pricing
Subscriber growth is your top bottleneck
You need SMS + email from one vendor
Non-Shopify platform or multi-channel retail
You want AI-driven personalization at scale
Want dedicated customer success manager

Choose Postscript when:

Shopify-only and want native deep integration
Revenue under $5M — value pricing matters
Already using Klaviyo for email (Postscript pairs perfectly)
Want faster setup and simpler onboarding
Need Shopify-native triggers (collections, tags, metafields)
Want month-to-month flexibility before committing

Attentive vs Postscript FAQ

Can I migrate from Postscript to Attentive (or vice versa)?

Yes — both platforms support subscriber list imports. Your SMS subscribers (opted-in contacts) can be migrated, though you'll need to verify you have proper consent documentation. Automation flows need to be rebuilt. Most brands allow 60-90 days for a full migration. If moving from Postscript to Attentive, budget for a few weeks of parallel running to validate deliverability.

Does Postscript work with non-Shopify platforms?

Postscript is purpose-built for Shopify and does not natively support other platforms. If you're on WooCommerce, BigCommerce, or Magento, Postscript is not the right choice. Attentive, Klaviyo, or SimpleTexting have broader platform support.

Which has better deliverability — Attentive or Postscript?

Both platforms have strong deliverability since they manage their own carrier relationships and 10DLC compliance. Attentive's sending infrastructure is battle-tested at higher volumes (they work with brands doing millions of messages). For smaller brands, both will deliver similar deliverability rates (typically 95-98%+).

Can I use Attentive or Postscript alongside Klaviyo?

Yes — many brands use Postscript for SMS and Klaviyo for email, integrating via native integrations that sync subscriber data and suppress opted-out contacts. Attentive now includes email functionality, so you can replace Klaviyo with Attentive if you prefer a unified platform. Both approaches work well; it depends on whether you prefer specialized tools (Postscript + Klaviyo) or a unified suite (Attentive).

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