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Marketing · head to head

Postscript vs Puppeteer

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
Puppeteer logo

Puppeteer

Testing

Node.js library for controlling Chrome and Firefox

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Puppeteer 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.; Puppeteer chrome and Firefox only, with no Safari or WebKit story
  • They diverge on capability: Postscript covers Shopify segmentation, Puppeteer covers DevTools Protocol.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Postscript and Puppeteer actually diverge.

Attributes where Postscript and Puppeteer differ
AttributePostscriptPuppeteer
Starting price$49/monthFree
Pricing modelPer month plus per message sentOpen source, no licence fee
Free tierNoYes
PlatformsWeb, iOSLinux, macOS, Windows
CategoryMarketingTesting

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 Puppeteer

  • DevTools Protocol
  • Headless by default
  • PDF and screenshots
  • Network interception

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

Puppeteer

  • Generating PDFs or screenshots of rendered pages on a servernot Postscript
  • Scraping sites that require JavaScript executionnot Postscript
  • Automating browser tasks where a full test framework is unnecessarynot 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.

Puppeteer

  • Chrome and Firefox only, with no Safari or WebKit story
  • Not a test framework: assertions, retries and reporting need Jest or similar bolted on
  • Bundles a Chromium download, which makes installs large and awkward in constrained CI images

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

Puppeteer

Free
  • PuppeteerFree
    • Full functionality
    • Unlimited tests
    • Community support

Which should you pick?

Choose Postscript if

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

Choose Puppeteer if

  • You need devtools protocol.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want headless by default.
Puppeteer review

Questions people ask

Is Postscript or Puppeteer better?
Neither clearly leads. Postscript starts at $49/month and Puppeteer at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Postscript or Puppeteer?
Puppeteer has a free tier; the other does not. Paid plans start at $49/month for Postscript and Free for Puppeteer.
Does Postscript or Puppeteer run on more platforms?
Postscript runs on Web, iOS. Puppeteer runs on Linux, macOS, Windows.
Can I use Puppeteer for free?
Yes. Puppeteer 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 Puppeteer is typically brought in for.
What can Postscript do that Puppeteer cannot?
Postscript covers Shopify segmentation, Automated flows, Subscriber acquisition, Two-way conversations. Puppeteer covers DevTools Protocol, Headless by default, PDF and screenshots, Network interception.

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.

Puppeteer: Is Puppeteer free?

Yes, open source from the Chrome team.

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.

Puppeteer: Puppeteer or Playwright?

Playwright came from the same original team, adds WebKit and Firefox support, automatic waiting and a test runner. Puppeteer stays a focused Chrome automation library, which is simpler if automation rather than testing is the goal.

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.

Puppeteer: Can Puppeteer generate PDFs?

Yes, and it is one of the most common uses — rendering a page and printing it to PDF server-side.

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.

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