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Marketing · head to head

Invoca vs Postscript

Invoca logo

Invoca

Marketing

Call tracking and conversation analytics that ties inbound phone calls back to paid marketing spend

From
On request
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: Invoca entry pricing commonly starts around 1,500 US dollars a month before call minutes, plus a setup and training fee, which prices out agencies and small businesses that only need attribution for a few hundred calls.; 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: Invoca covers Dynamic number insertion, Postscript covers Shopify segmentation.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Invoca and Postscript actually diverge.

Attributes where Invoca and Postscript differ
AttributeInvocaPostscript
Starting priceOn request$49/month
Pricing modelquotePer month plus per message sent
PlatformsWebWeb, iOS

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 Invoca

  • Dynamic number insertion
  • Signal AI
  • Ad platform integration
  • Call transcription
  • PreSense
  • Call routing
  • Quality management
  • Compliance redaction

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.

Invoca

  • A multi-location healthcare group proving which paid search keywords produce booked appointments rather than just call volumenot Postscript
  • An insurance carrier feeding qualified call outcomes back into Google Ads so bidding optimises on written policies instead of raw callsnot Postscript
  • An automotive dealer group working out which regional campaigns generate service bookings versus tyre-kicker enquiriesnot Postscript
  • A home services franchisor allocating budget across franchisees by attributing revenue-producing calls to the campaigns that caused themnot Postscript

Postscript

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

Where each one falls short

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

Invoca

  • Entry pricing commonly starts around 1,500 US dollars a month before call minutes, plus a setup and training fee, which prices out agencies and small businesses that only need attribution for a few hundred calls.
  • Telephony minutes and tracking numbers are metered separately from the platform fee, so a seasonal advertising spike produces an invoice nobody forecast.
  • Signal AI, PreSense and quality management are frequently sold as add-on modules rather than included, meaning the demo you were shown may cost noticeably more than the quote you were given.
  • Contracts are annual or multi-year with usage minimums and no month-to-month option, so a campaign strategy that shifts away from phone calls leaves you paying for capacity you no longer use.
  • The product is deep on inbound phone attribution and shallow elsewhere; if your buying journey also involves chat, forms and in-store visits, Invoca covers only one channel and you still need a separate attribution model for the rest.

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

Invoca

On request
  • Pro$undefined/year
    • Around 6,000 annual local or toll-free numbers
    • 5 custom Signals
    • Dynamic number insertion
  • Enterprise$undefined/year
    • Around 12,000 annual numbers
    • 50 custom Signals
    • Advanced routing
  • Elite$undefined/year
    • Around 18,000 annual numbers
    • 100 custom Signals
    • Full analytics suite
  • Performance Professional$undefined/year
    • Pay-per-call network features
    • Publisher and affiliate call tracking
    • Payout management

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 Invoca if

  • You need dynamic number insertion.
  • You also want signal ai.
Invoca review

Choose Postscript if

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

Questions people ask

Is Invoca or Postscript better?
Neither clearly leads. Invoca starts at On request and Postscript at $49/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Invoca or Postscript?
Invoca starts at On request and Postscript at $49/month.
Does Invoca or Postscript run on more platforms?
Invoca runs on Web. Postscript runs on Web, iOS.
What is Invoca best used for?
Invoca is most often used for a multi-location healthcare group proving which paid search keywords produce booked appointments rather than just call volume, an insurance carrier feeding qualified call outcomes back into google ads so bidding optimises on written policies instead of raw calls, an automotive dealer group working out which regional campaigns generate service bookings versus tyre-kicker enquiries, a home services franchisor allocating budget across franchisees by attributing revenue-producing calls to the campaigns that caused them. Of those, a multi-location healthcare group proving which paid search keywords produce booked appointments rather than just call volume and an insurance carrier feeding qualified call outcomes back into google ads so bidding optimises on written policies instead of raw calls are not what Postscript is typically brought in for.
What can Invoca do that Postscript cannot?
Invoca covers Dynamic number insertion, Signal AI, Ad platform integration, Call transcription. Postscript covers Shopify segmentation, Automated flows, Subscriber acquisition, Two-way conversations.

Answered from the vendors’ own pages

Invoca: Does Invoca publish prices?

No. Every deal is quoted from call volume, number count and which modules you licence. Independent reports put the entry point near 1,500 US dollars a month plus minutes.

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.

Invoca: Is this different from CallRail?

Yes, in ambition and price. Invoca targets enterprise attribution with automated outcome classification fed back to ad bidding; lighter call tracking tools stop at source attribution.

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.

Invoca: Is it HIPAA compatible?

Invoca sells heavily into healthcare and offers redaction and compliance controls for regulated recordings; confirm the specific terms in your contract.

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.

Invoca: Do we need a contact centre platform as well?

Yes. Invoca tracks and analyses calls, it does not run your contact centre.

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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