Quick answer
No winner yet. Attentive and Postscript differ most in architecture and intended operating model. Use this researched comparison to decide which deserves a hands-on pilot—not as a substitute for one.
At a glance
| Decision factor | Attentive | Postscript |
|---|---|---|
| Channel breadth | SMS, email, RCS, push by package | SMS/RCS focus; email/AI referenced |
| Shopify specificity | Verify storefront integrations | Shopify-focused |
| Pricing basis | Custom: volume, list, channels, AI | Software fee + per-message |
| Public rates | No universal public price | Published SMS/MMS by plan |
| Carrier fees | Verify in proposal | Apply on top; short code $750/mo optional |
| AI / add-ons | AI priced flat monthly or pay-per-click by product | Verify email/AI terms |
| Sales motion | Sales-assisted | Self-serve plans + Enterprise custom |
| Contracts / minimums | Verify in proposal | Optional; Starter $49 min. spend |
| Trial | Offered via sales | 30 days + $100 credit |
| Data / integrations | Data platform/integrations listed | Verify Shopify and email sync |
Architecture and target user
Attentive
SMS and email marketing platform with RCS, push, and AI options by package; sales-assisted, custom usage-based pricing.
Worth investigating for brands evaluating SMS-led messaging across several channels with strategic support.
Postscript
Shopify-focused SMS/RCS retention platform with published monthly software fees and per-message rates.
Worth investigating for Shopify merchants modeling SMS retention with public rates.
Ease and implementation considerations
Attentive
Verify integrations, data platform scope, consent capture, compliance tooling, channel setup, and AI product terms.
Postscript
Verify Shopify sync, consent capture, sender number choice, email-platform coexistence, and segmentation behavior.
These are research observations, not timing or usability test results. Implementation depends on catalog, data migration, design, channels, integrations, internal skills, and partner scope.
Ecosystem and integrations
Attentive
Confirm storefront integrations, event sync, exports, and how channels share subscriber data.
Postscript
Shopify-specific. Confirm integrations, exports, API access, and RCS availability.
Pricing approach
Attentive: No universal numeric base price published. Pricing is tailored by message volume, list size, channels, and AI products; usage-based with no credit system per FAQ. Bundling discounts may apply; free trials via sales. Verified Sep 28, 2026.
Current Attentive pricingPostscript: Starter $0/mo + $49 minimum spend ($0.009 SMS / $0.045 MMS); Growth $100/mo ($0.008 / $0.03); Professional $500/mo ($0.007 / $0.024); Enterprise custom. US/Canada rates plus carrier fees. 30-day trial with $100 credit; contracts optional. Verified Sep 28, 2026.
Current Postscript pricingPublished rates and custom quotes cannot be compared without a proposal. Model the same list size, message volume, segment count, carrier fees, and channels for both.
Build a scenario-based total-cost model. Include implementation, ongoing labor, extensions, communications or payments, support, and migration—not only the published base price.
Which businesses should investigate each
Investigate Attentive if…
- You need SMS plus email, RCS, or push under one contract.
- A sales-assisted process and strategic support fit your team.
- You can request proposals at several list sizes.
Investigate Postscript if…
- Your storefront is Shopify.
- SMS retention is the primary job.
- Published per-message pricing helps you model cost.
What we still need to test
- Connect equivalent Shopify stores and audit subscriber, order, and event sync.
- Build the same abandonment and post-purchase SMS flows.
- Send test messages of varying length to observe segment billing.
- Reconcile invoices including carrier fees and add-ons.
- Export subscriber and consent records to document exit.
BestStorefront will not name a winner before those scenarios are completed and documented.
Decision support
Frequently asked questions
Is Attentive or Postscript better?
Not established. They differ in channel breadth, platform focus, and pricing motion.
Which costs less?
Unknown without an Attentive proposal. Postscript publishes rates; Attentive tailors pricing.
Has BestStorefront tested them?
Not yet. This is a source-led comparison; hands-on testing is pending.