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Nonprofits · head to head

Constant Contact vs Postscript

Constant Contact logo

Constant Contact

Nonprofits

Email marketing and event management

From
Free
Rated
-
Full reviewWebsite
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

The short version

  • Only Constant Contact has a free tier, so it costs nothing to try first.
  • Each has a real cost: Constant Contact core plan started at $9.99 per month and Plus plan at $45 per month, both scaling by contact list size rather than a flat rate (Internet Archive capture, 2022); 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.
  • They diverge on capability: Constant Contact covers Email marketing, Postscript covers Shopify segmentation.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Constant Contact and Postscript actually diverge.

Attributes where Constant Contact and Postscript differ
AttributeConstant ContactPostscript
Starting priceFree$49/month
Pricing modelsubscriptionPer month plus per message sent
Free tierYesNo
PlatformsWeb, Mobile-responsiveWeb, iOS
CategoryNonprofitsMarketing
Founded1995Unknown

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 Constant Contact

  • Email marketing
  • Event management
  • Contact management
  • Automation
  • Analytics
  • Salesforce
  • Zapier
  • Google Analytics

Only in Postscript

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

What people use each for

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

Constant Contact

  • Business operationsnot Postscript
  • Productivitynot Postscript
  • Automationnot Postscript

Postscript

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

Where each one falls short

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

Constant Contact

  • Core plan started at $9.99 per month and Plus plan at $45 per month, both scaling by contact list size rather than a flat rate (Internet Archive capture, 2022)

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.

Pricing, plan by plan

Constant Contact

Free
  • FreeFree
    • Basic email marketing
    • Contacts up to 100
  • Plus$45/month
    • Advanced features
    • Event management
    • Automation

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

Which should you pick?

Choose Constant Contact if

  • You need email marketing.
  • You want to start without paying.
  • You work on Web, Mobile-responsive.
  • You also want event management.
Constant Contact review

Choose Postscript if

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

Questions people ask

Is Constant Contact or Postscript better?
Neither clearly leads. Constant Contact starts at Free and Postscript at $49/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Constant Contact or Postscript?
Constant Contact has a free tier; the other does not. Paid plans start at Free for Constant Contact and $49/month for Postscript.
Does Constant Contact or Postscript run on more platforms?
Constant Contact runs on Web, Mobile-responsive. Postscript runs on Web, iOS.
Can I use Constant Contact for free?
Yes. Constant Contact has a free tier, so you can try it without paying. Postscript starts at $49/month.
What is Constant Contact best used for?
Constant Contact is most often used for business operations, productivity, automation. Of those, business operations and productivity are not what Postscript is typically brought in for.
What can Constant Contact do that Postscript cannot?
Constant Contact covers Email marketing, Event management, Contact management, Automation. Postscript covers Shopify segmentation, Automated flows, Subscriber acquisition, Two-way conversations.

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.

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.

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.

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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