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Marketing · head to head

AB Tasty vs Postscript

AB Tasty logo

AB Tasty

Marketing

Conversion optimization platform

From
€500/month
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

  • Each has a real cost: AB Tasty no transparent pricing published; requires custom sales conversation for any quote; 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: AB Tasty covers A/B testing, Postscript covers Shopify segmentation.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which AB Tasty and Postscript actually diverge.

Attributes where AB Tasty and Postscript differ
AttributeAB TastyPostscript
Starting price€500/month$49/month
Pricing modelquotePer month plus per message sent
PlatformsWebWeb, iOS
Founded2011Unknown

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 AB Tasty

  • A/B testing
  • Multivariate testing
  • Personalization
  • Visual editor
  • Google Analytics
  • Salesforce
  • SSL encryption
  • Cloud deployment

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.

AB Tasty

  • A/B and multivariate testing on web and mobilenot Postscript
  • Feature flagging and progressive rolloutsnot Postscript
  • Personalising content for identified and anonymous visitorsnot Postscript
  • Search, recommendations and merchandising for ecommercenot Postscript
  • Conversion optimisation experiments across channelsnot Postscript

Postscript

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

Where each one falls short

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

AB Tasty

  • No transparent pricing published; requires custom sales conversation for any quote
  • Pricing determined by traffic volume, number of domains, and selected modules
  • No fixed pricing plans available; all customers receive individualized proposals

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

AB Tasty

€500/month
  • Standard$500/month
    • A/B testing
    • Basic personalization
    • Analytics

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 AB Tasty if

  • You need a/b testing.
  • You also want multivariate testing.
AB Tasty review

Choose Postscript if

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

Questions people ask

Is AB Tasty or Postscript better?
Neither clearly leads. AB Tasty starts at €500/month and Postscript at $49/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, AB Tasty or Postscript?
AB Tasty starts at €500/month and Postscript at $49/month.
Does AB Tasty or Postscript run on more platforms?
AB Tasty runs on Web. Postscript runs on Web, iOS.
What is AB Tasty best used for?
AB Tasty is most often used for a/b and multivariate testing on web and mobile, feature flagging and progressive rollouts, personalising content for identified and anonymous visitors, search, recommendations and merchandising for ecommerce. Of those, a/b and multivariate testing on web and mobile and feature flagging and progressive rollouts are not what Postscript is typically brought in for.
What can AB Tasty do that Postscript cannot?
AB Tasty covers A/B testing, Multivariate testing, Personalization, Visual editor. Postscript covers Shopify segmentation, Automated flows, Subscriber acquisition, Two-way conversations.

Answered from the vendors’ own pages

AB Tasty: How does AB Tasty calculate pricing?

AB Tasty pricing is customized based on average traffic over the past 12 months or monthly active users (MAUs). The vendor does not offer fixed pricing plans and instead builds custom proposals around each customer's business goals and scope.

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.

AB Tasty: What factors affect AB Tasty pricing besides traffic volume?

Pricing is customized based on traffic volume, number of domains, selected modules, and implementation scope. All pricing includes platform access, onboarding, training, and support with no hidden fees or surprise overage charges.

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.

AB Tasty: Does AB Tasty offer a free trial or proof of concept?

AB Tasty does not offer a traditional free trial. Instead, the vendor provides a free proof of concept evaluation typically lasting 1 to 2 weeks to assess platform fit before purchase commitment.

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.

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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