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Postscript vs Zonka Feedback

Postscript logo

Postscript

Marketing

SMS marketing built for Shopify merchants, with carrier fees billed on top of message rates

From
$49/month
Free plan
No
Full reviewWebsite
Zonka Feedback logo

Zonka Feedback

Surveys

Multi-channel CX feedback platform with quoted pricing based on response volume and AI data credits

From
On request
Free plan
No
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.; Zonka Feedback no pricing tier is published for either the core product or the AI add-on, so total cost is unknown until a sales quote is obtained.
  • They diverge on capability: Postscript covers Shopify segmentation, Zonka Feedback covers Multi-channel surveys.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Postscript and Zonka Feedback actually diverge.

Attributes where Postscript and Zonka Feedback differ
AttributePostscriptZonka Feedback
Starting price$49/monthOn request
Pricing modelPer month plus per message sentquote
PlatformsWeb, iOSWeb, iOS, Android
CategoryMarketingSurveys

Identical on both: free tier (No), 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 Zonka Feedback

  • Multi-channel surveys
  • Kiosk and offline mode
  • Real-time dashboards
  • Case management
  • AI Feedback Intelligence
  • Reputation management

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

Zonka Feedback

  • A multi-location retailer or clinic wanting kiosk-based feedback capture alongside digital surveysnot Postscript
  • A CX team that needs closed-loop case management to assign and track resolution of negative feedbacknot Postscript
  • A hospitality operator wanting reputation management alongside direct feedback collectionnot Postscript
  • A company with high volumes of open-ended feedback wanting AI theme extraction rather than manual taggingnot 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.

Zonka Feedback

  • No pricing tier is published for either the core product or the AI add-on, so total cost is unknown until a sales quote is obtained.
  • The AI Feedback Intelligence product is priced separately on data credits, meaning a buyer who wants both feedback collection and AI analysis is negotiating two line items, not one.
  • Third-party pricing estimates in the low hundreds to near a thousand dollars a month vary enough that budgeting from public sources alone is unreliable.
  • Kiosk hardware and offline capture are a strength for physical locations but add limited value to a purely digital-only business, which pays for a capability it does not use.
  • It is a smaller vendor than Medallia or Qualtrics, so enterprise buyers evaluating analyst-recognised platforms may not shortlist it despite comparable core features.

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

Zonka Feedback

On request
  • Feedback Management$undefined/month
    • Priced by response volume
    • Multi-channel surveys and case management
    • 14-day free trial
  • AI Feedback Intelligence$undefined/month
    • Priced by AI data credits, separate from Feedback Management
    • Theme extraction, sentiment and impact analysis

Which should you pick?

Choose Postscript if

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

Choose Zonka Feedback if

  • You need multi-channel surveys.
  • You work on Web, iOS, Android.
  • You also want kiosk and offline mode.
Zonka Feedback review

Questions people ask

Is Postscript or Zonka Feedback better?
Neither clearly leads. Postscript starts at $49/month and Zonka Feedback at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Postscript or Zonka Feedback?
Postscript starts at $49/month and Zonka Feedback at On request.
Does Postscript or Zonka Feedback run on more platforms?
Postscript runs on Web, iOS. Zonka Feedback runs on Web, iOS, Android.
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 Zonka Feedback is typically brought in for.
What can Postscript do that Zonka Feedback cannot?
Postscript covers Shopify segmentation, Automated flows, Subscriber acquisition, Two-way conversations. Zonka Feedback covers Multi-channel surveys, Kiosk and offline mode, Real-time dashboards, Case management.

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.

Zonka Feedback: Is pricing published anywhere?

No. Zonka quotes pricing based on feedback volume for the core product and data credits for AI Feedback Intelligence; nothing is listed as a fixed price.

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.

Zonka Feedback: Is AI Feedback Intelligence included in the base plan?

No, it is sold and priced separately from core feedback management.

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.

Zonka Feedback: Does it support offline feedback collection?

Yes, kiosk and tablet devices can capture feedback without a live network connection, which is a differentiator against purely web-based survey tools.

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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