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Marketing · head to head

Postscript vs Triple Whale

Postscript logo

Postscript

Marketing

SMS marketing built for Shopify merchants, with carrier fees billed on top of message rates

From
$49/month
Rated
-
Full reviewWebsite
Triple Whale logo

Triple Whale

Marketing

The operating system for e-commerce

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Triple Whale has a free tier, so it costs nothing to try first.
  • Each has a real cost: Postscript carrier pass-through fees are billed on top of the per-message rate, roughly $0.00418 per SMS and $0.00841 per MMS in the United States, and are routinely missing from the cost comparisons buyers build.; Triple Whale shopify-first focus limits functionality for multi-platform ecommerce operations beyond Shopify ecosystem
  • They diverge on capability: Postscript covers Shopify segmentation, Triple Whale covers First-party attribution.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Postscript and Triple Whale actually diverge.

Attributes where Postscript and Triple Whale differ
AttributePostscriptTriple Whale
Starting price$49/monthFree
Pricing modelPer month plus per message sentUnknown
Free tierNoYes
PlatformsWeb, iOSWeb
FoundedUnknown2021

Identical on both: user rating (Not yet rated), category (Marketing).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Postscript

  • Shopify segmentation
  • Automated flows
  • Subscriber acquisition
  • Two-way conversations
  • MMS campaigns
  • Revenue attribution
  • Headless SDK
  • Usage-based tiers

Only in Triple Whale

  • First-party attribution
  • Real-time dashboard
  • Creative analytics
  • Sonar AI assistant
  • Pixel tracking
  • Profit tracking
  • Cohort analysis
  • Benchmarking

What people use each for

The jobs each tool is most often brought in to do.

Postscript

  • A Shopify direct-to-consumer brand that wants abandoned cart recovery by text rather than another email in an ignored inboxnot Triple Whale
  • A brand running a product drop where a timed broadcast to an opted-in list is the whole launch mechanismnot Triple Whale
  • A merchant segmenting by past purchase and variant to send replenishment reminders at the right intervalnot Triple Whale
  • A store on headless Shopify or a custom stack that still wants SMS built on order data through the SDKnot Triple Whale

Triple Whale

  • Marketing analyticsnot Postscript
  • Attribution trackingnot Postscript
  • Profit optimizationnot Postscript
  • Creative testingnot Postscript

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Postscript

  • Carrier pass-through fees are billed on top of the per-message rate, roughly $0.00418 per SMS and $0.00841 per MMS in the United States, and are routinely missing from the cost comparisons buyers build.
  • The cheapest per-message rates require the $500 a month plan, so a small sender pays more than double the headline low rate per text.
  • The $0 Starter plan carries a $49 minimum monthly spend, so it is not a free tier and quiet months still generate a bill.
  • US SMS marketing carries real legal exposure under consent, quiet hours and carrier registration rules, and the compliance obligation sits with the merchant, not the platform.
  • It is SMS and MMS only, so email, push and on-site messaging live in a separate tool and audience suppression between the two has to be managed across systems.

Triple Whale

  • Shopify-first focus limits functionality for multi-platform ecommerce operations beyond Shopify ecosystem
  • Creative analytics and advanced features sold as add-ons beyond base plan pricing
  • GMV-based pricing for larger brands creates unpredictable costs at scale

Pricing, plan by plan

Postscript

$49/month
  • Starter$49/month
    • $0 base fee but a $49 minimum monthly spend
    • SMS at $0.015 and MMS at $0.045 per message
    • Campaigns, automations, acquisition tools and analytics
  • Growth$100/month
    • Lower per-message rates than Starter
    • Full campaign and automation feature set
    • No contract required
  • Professional$500/month
    • Rates falling towards $0.007 SMS and $0.024 MMS
    • Suited to high-volume senders
    • Upgrade or downgrade at any time
  • Enterprise$undefined/month
    • Custom pricing on a contract
    • Negotiated message rates and support terms

Triple Whale

Free
  • Founders DashboardFree
    • Basic analytics
    • Dashboard access
  • Starter$179/month
    • Multi-touch attribution
    • Sonar Send
    • Analytics dashboard
  • Advanced$259/month
    • All Starter features
    • Advanced analytics
    • Add-ons available

Which should you pick?

Choose Postscript if

  • You need shopify segmentation.
  • You work on Web, iOS.
  • You also want automated flows.
Postscript review

Choose Triple Whale if

  • You need first-party attribution.
  • You want to start without paying.
  • You also want real-time dashboard.
Triple Whale review

Questions people ask

Is Postscript or Triple Whale better?
Neither clearly leads. Postscript starts at $49/month and Triple Whale at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Postscript or Triple Whale?
Triple Whale has a free tier; the other does not. Paid plans start at $49/month for Postscript and Free for Triple Whale.
Does Postscript or Triple Whale run on more platforms?
Postscript runs on Web, iOS. Triple Whale runs on Web.
Can I use Triple Whale for free?
Yes. Triple Whale has a free tier, so you can try it without paying. Postscript starts at $49/month.
What is Postscript best used for?
Postscript is most often used for a shopify direct-to-consumer brand that wants abandoned cart recovery by text rather than another email in an ignored inbox, a brand running a product drop where a timed broadcast to an opted-in list is the whole launch mechanism, a merchant segmenting by past purchase and variant to send replenishment reminders at the right interval, a store on headless shopify or a custom stack that still wants sms built on order data through the sdk. Of those, a shopify direct-to-consumer brand that wants abandoned cart recovery by text rather than another email in an ignored inbox and a brand running a product drop where a timed broadcast to an opted-in list is the whole launch mechanism are not what Triple Whale is typically brought in for.
What can Postscript do that Triple Whale cannot?
Postscript covers Shopify segmentation, Automated flows, Subscriber acquisition, Two-way conversations. Triple Whale covers First-party attribution, Real-time dashboard, Creative analytics, Sonar AI assistant.

Answered from the vendors’ own pages

Postscript: Is Postscript only for Shopify?

It is built for Shopify and that is where its segmentation advantage lies, but headless and non-Shopify stores are supported through an SDK with more setup work.

Triple Whale: What is Triple Whale's pricing structure?

Triple Whale offers a free Founders Dashboard, Starter plan at $179/month, Advanced plan at $259/month, and Custom plans starting at $539/month. Brands above $5M GMV use GMV-based pricing, with brands at $10M-$15M GMV paying approximately $1,849/month.

Source
Postscript: What is the real cost per text?

The plan rate plus carrier fees. On Starter that is about $0.015 plus roughly $0.00418 in US carrier fees per SMS, so budget close to two cents a message before discounts.

Triple Whale: Does Triple Whale integrate with Shopify?

Yes. Triple Whale is a Shopify-focused analytics platform that natively integrates with Shopify stores and connects to Meta, Google, and TikTok for multi-touch attribution.

Source
Postscript: Is the Starter plan free?

No. The base fee is $0 but there is a $49 minimum monthly spend, so it functions as a $49 floor.

Triple Whale: What AI features does Triple Whale offer?

Triple Whale includes Moby Actions for automated operations like pausing underperforming ad sets and sending segments to Klaviyo, plus Compass with MMM, incrementality testing, and AI agent suite capabilities.

Source
Postscript: Do I need a contract?

No. Contracts are offered but not required, and plans can be moved up or down at any time under usage-based billing.

Triple Whale: Is there a free plan?

Yes. Triple Whale offers a free Founders Dashboard for basic analytics access, but advanced features and full attribution require paid plans.

Source
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