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Marketing · head to head

Postscript vs Zapier

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
Zapier logo

Zapier

Automation Integration

Automate your work across 7,000+ app integrations

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Zapier 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.; Zapier the free plan allows 100 tasks per month and only two-step Zaps, one trigger and one action
  • They diverge on capability: Postscript covers Shopify segmentation, Zapier covers App integrations.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Postscript and Zapier actually diverge.

Attributes where Postscript and Zapier differ
AttributePostscriptZapier
Starting price$49/monthFree
Pricing modelPer month plus per message sentusage-based
Free tierNoYes
PlatformsWeb, iOSWeb, Api
CategoryMarketingAutomation Integration
FoundedUnknown2011

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

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 Zapier

  • App integrations
  • Workflow automation
  • Trigger-based actions
  • Multi-step Zaps
  • Data formatting
  • Conditional logic
  • Error handling
  • Team collaboration

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 Zapier
  • A brand running a product drop where a timed broadcast to an opted-in list is the whole launch mechanismnot Zapier
  • A merchant segmenting by past purchase and variant to send replenishment reminders at the right intervalnot Zapier
  • A store on headless Shopify or a custom stack that still wants SMS built on order data through the SDKnot Zapier

Zapier

  • Lead managementnot Postscript
  • Data synchronizationnot Postscript
  • Email automationnot Postscript
  • Social media postingnot Postscript
  • Customer onboardingnot 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.

Zapier

  • The free plan allows 100 tasks per month and only two-step Zaps, one trigger and one action
  • Multi-step Zaps, filters, paths, webhooks and the formatter all require a paid plan
  • Premium app connectors are withheld from the free plan
  • Free Zaps poll for new data every 15 minutes against 2 minutes on Professional and 1 minute on Team
  • Paying monthly rather than annually costs 50 percent more, so the 2,000-task Professional plan is $73.50 a month instead of $49

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

Zapier

Free
  • FreeFree
    • 100 tasks/month
    • 5 Zaps
    • Two-step Zaps
  • Starter$19.99/month
    • 750 tasks/month
    • 20 Zaps
    • Multi-step Zaps
  • Professional$49/month
    • 2,000 tasks/month
    • Unlimited Zaps
    • Custom logic

Which should you pick?

Choose Postscript if

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

Choose Zapier if

  • You need app integrations.
  • You want to start without paying.
  • You work on Web, Api.
  • You also want workflow automation.
Zapier review

Questions people ask

Is Postscript or Zapier better?
Neither clearly leads. Postscript starts at $49/month and Zapier at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Postscript or Zapier?
Zapier has a free tier; the other does not. Paid plans start at $49/month for Postscript and Free for Zapier.
Does Postscript or Zapier run on more platforms?
Postscript runs on Web, iOS. Zapier runs on Web, Api.
Can I use Zapier for free?
Yes. Zapier 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 Zapier is typically brought in for.
What can Postscript do that Zapier cannot?
Postscript covers Shopify segmentation, Automated flows, Subscriber acquisition, Two-way conversations. Zapier covers App integrations, Workflow automation, Trigger-based actions, Multi-step Zaps.

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.

Zapier: What happens if I exceed my task limit in Zapier?

If you enable pay-per-task, monthly plans charge 2.5 times your base rate for overage tasks, while annual plans charge 1.25 times. Usage stops at 3 times your subscription amount as a hard ceiling.

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.

Zapier: Can I cancel my Zapier subscription at any time?

Yes, you can cancel anytime. Your access continues through the end of your current billing cycle.

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.

Zapier: How long does Zapier retain my audit logs and version history?

Professional plan users get 1-month version history, Team plan users get 6-month audit logs and version history, and Enterprise customers get 1-year audit logs with custom data retention available.

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.

Zapier: What support do I get with my Zapier plan?

Professional and Team plans include email support available 24/7, with live chat available for higher-tier plans. Team plan includes priority support, and Enterprise customers receive a dedicated Technical Account Manager.

Source
Zapier: What discount does Zapier offer for annual plans?

Annual subscriptions receive 33% off the monthly rate. Non-profit organizations get an additional 15% reduction on top of the annual discount, though this excludes pay-per-task charges.

Source
Zapier: Does Zapier offer a free trial?

Yes, new accounts get a 14-day free trial of the Professional plan with no credit card required.

Source
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