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Email Marketing · head to head

Omnisend vs Postscript

Omnisend logo

Omnisend

Email Marketing

Email, SMS and push marketing automation for ecommerce

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 Omnisend has a free tier, so it costs nothing to try first.
  • Each has a real cost: Omnisend free plan caps at 250 contacts and 500 emails per month; 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.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Omnisend and Postscript actually diverge.

Attributes where Omnisend and Postscript differ
AttributeOmnisendPostscript
Starting priceFree$49/month
Pricing modelfreemiumPer month plus per message sent
Free tierYesNo
PlatformsWebWeb, iOS
CategoryEmail MarketingMarketing

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 Omnisend

Nothing recorded that Postscript does not also cover.

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.

Omnisend

  • Sending cart abandonment recovery emails with product recommendationsnot Postscript
  • Segmenting customers by purchase history for targeted SMS campaignsnot Postscript
  • Creating browse abandonment sequences triggered by browsing behaviornot Postscript
  • Generating personalized product recommendations in email messagesnot Postscript

Postscript

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

Where each one falls short

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

Omnisend

  • Free plan caps at 250 contacts and 500 emails per month
  • Standard plan is limited to 500 contacts and 6,000 emails per month before an upgrade is required
  • SMS is billed separately starting at $0.007 per message and varies by country and volume
  • Custom pricing only begins above 150,001 contacts, requiring a sales conversation at that scale

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

Omnisend

Free
  • FreeFree
    • Up to 250 contacts
    • 500 emails/month
    • 500 web push/month
  • Standard$11.2/month
    • Up to 500 contacts
    • 6,000 emails/month (12x list size)
    • Unlimited web push
  • Pro$41.3/month
    • Up to 2,500 contacts
    • Unlimited emails
    • Unlimited web push
  • Custom$undefined/mo
    • 150,001+ contacts
    • Custom pricing with dedicated account expert

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 Omnisend if

  • You want to start without paying.
Omnisend review

Choose Postscript if

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

Questions people ask

Is Omnisend or Postscript better?
Neither clearly leads. Omnisend 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, Omnisend or Postscript?
Omnisend has a free tier; the other does not. Paid plans start at Free for Omnisend and $49/month for Postscript.
Does Omnisend or Postscript run on more platforms?
Omnisend runs on Web. Postscript runs on Web, iOS.
Can I use Omnisend for free?
Yes. Omnisend has a free tier, so you can try it without paying. Postscript starts at $49/month.
What is Omnisend best used for?
Omnisend is most often used for sending cart abandonment recovery emails with product recommendations, segmenting customers by purchase history for targeted sms campaigns, creating browse abandonment sequences triggered by browsing behavior, generating personalized product recommendations in email messages. Of those, sending cart abandonment recovery emails with product recommendations and segmenting customers by purchase history for targeted sms campaigns are not what Postscript is typically brought in for.
What can Omnisend do that Postscript cannot?
Postscript covers Shopify segmentation, Automated flows, Subscriber acquisition, Two-way conversations.

Answered from the vendors’ own pages

Omnisend: What is Omnisend's pricing model?

Omnisend uses contact-based tiered pricing. Free plan includes 250 contacts, Standard tier covers 500 contacts at $11.20/month, Pro tier covers 2,500 contacts at $41.30/month. Monthly or 3-month subscriptions available with 30% discount on quarterly billing.

Source
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.

Omnisend: Does Omnisend charge for SMS?

Yes, SMS is an add-on with volume-based pricing starting at $0.007 per message for orders of 10,000+ messages, up to $0.009 per message for smaller volumes.

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.

Omnisend: Is there a free version of Omnisend?

Omnisend offers a free tier for up to 250 contacts with 500 emails/month, 500 web push/month, and basic automation features.

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.

Omnisend: What is included in the Pro plan?

The Pro plan at $41.30/month covers up to 2,500 contacts with unlimited emails, unlimited web push, AI personalization, and SMS starting at $0.007 per message.

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.

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