Softwr

Marketing · head to head

Postscript vs WebEngage

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
WebEngage logo

WebEngage

Marketing

Customer engagement and retention automation for consumer businesses in India and Southeast Asia

From
On request
Rated
-
Full reviewWebsite

The short version

  • 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.; WebEngage nothing about pricing is published, and since the entire commercial argument for WebEngage is that it undercuts Braze and CleverTap, you cannot evaluate the one thing that makes it interesting without entering a sales process.
  • They diverge on capability: Postscript covers Shopify segmentation, WebEngage covers Journey designer.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Postscript and WebEngage actually diverge.

Attributes where Postscript and WebEngage differ
AttributePostscriptWebEngage
Starting price$49/monthOn request
Pricing modelPer month plus per message sentquote
PlatformsWeb, iOSWeb, iOS SDK, Android SDK, React Native, Flutter, API

Identical on both: free tier (No), 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 WebEngage

  • Journey designer
  • Behavioural segmentation
  • Push and in-app
  • WhatsApp
  • Analytics
  • Personalisation
  • On-site surveys
  • Customer data platform

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

WebEngage

  • A consumer app in India or Southeast Asia with several million monthly users needs Braze-class journey automation at a price its marketing budget can absorb.not Postscript
  • A fintech or edtech business needs WhatsApp as a primary retention channel rather than a secondary one, in a market where email open rates are low and WhatsApp is universal.not Postscript
  • A media or ecommerce company wants behavioural segmentation and lifecycle journeys without building a customer data platform separately first.not Postscript
  • A team wants funnels, cohorts and retention analysis in the same tool that sends the messages, so the analyst and the campaign manager are not reconciling two systems.not 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.

WebEngage

  • Nothing about pricing is published, and since the entire commercial argument for WebEngage is that it undercuts Braze and CleverTap, you cannot evaluate the one thing that makes it interesting without entering a sales process.
  • Message volumes across email, SMS and WhatsApp are metered separately from the platform fee, so a campaign that succeeds increases the bill in ways the monthly tracked user figure does not capture.
  • It requires genuine engineering investment to instrument events and user attributes correctly, and a poorly instrumented deployment produces segments that are wrong rather than merely incomplete, which is expensive to discover after launch.
  • Enterprise assurance is lighter than the American incumbents: procurement teams expecting extensive compliance documentation, regional data residency guarantees and 24 hour follow-the-sun support may find gaps.
  • Its centre of gravity is India, Southeast Asia and the Middle East, so partner availability, agency expertise and support hours all favour those regions and a European or North American buyer is a peripheral customer.

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

WebEngage

On request
  • WebEngage$undefined/year
    • Priced by monthly tracked users and channels enabled
    • Journeys, segmentation and analytics included
    • Email, SMS and WhatsApp volumes charged separately

Which should you pick?

Choose Postscript if

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

Choose WebEngage if

  • You need journey designer.
  • You work on Web, iOS SDK, Android SDK, React Native, Flutter, API.
  • You also want behavioural segmentation.
WebEngage review

Questions people ask

Is Postscript or WebEngage better?
Neither clearly leads. Postscript starts at $49/month and WebEngage at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Postscript or WebEngage?
Postscript starts at $49/month and WebEngage at On request.
Does Postscript or WebEngage run on more platforms?
Postscript runs on Web, iOS. WebEngage runs on Web, iOS SDK, Android SDK, React Native, Flutter, API.
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 WebEngage is typically brought in for.
What can Postscript do that WebEngage cannot?
Postscript covers Shopify segmentation, Automated flows, Subscriber acquisition, Two-way conversations. WebEngage covers Journey designer, Behavioural segmentation, Push and in-app, WhatsApp.

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.

WebEngage: How much does WebEngage cost?

It does not publish pricing. It is quoted by monthly tracked users with message volumes charged separately, and it typically comes in below Braze and CleverTap for equivalent volumes.

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.

WebEngage: Is it a CDP or a marketing automation tool?

Both, in practice. It assembles unified user profiles from event streams and then acts on them, though it is lighter than a dedicated CDP on data warehousing and identity resolution.

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.

WebEngage: Is WebEngage owned by anyone else?

No. It remains an independent Mumbai-based company.

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.

WebEngage: Which channels does it support?

Mobile push, in-app, web push, email, SMS and WhatsApp, with WhatsApp treated as a first-class channel rather than an add-on.

Share

Related pages

More on Postscript

More on WebEngage

Keep looking

Other head to heads