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Marketing · head to head

Moz vs Postscript

Moz logo

Moz

Marketing

SEO platform built around Domain Authority, local listings management and a weekly campaign workflow

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 Moz has a free tier, so it costs nothing to try first.
  • Each has a real cost: Moz moz refreshes its link index less often and discovers fewer links than Ahrefs, so a new backlink frequently appears in Ahrefs days before it shows up in Link Explorer, which matters if link acquisition reporting is your job.; 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: Moz covers Keyword Explorer, Postscript covers Shopify segmentation.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Moz and Postscript actually diverge.

Attributes where Moz and Postscript differ
AttributeMozPostscript
Starting priceFree$49/month
Pricing modelPer month by usage limitsPer month plus per message sent
Free tierYesNo
PlatformsWebWeb, iOS
Founded2004Unknown

Identical on both: 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 Moz

  • Keyword Explorer
  • Link Explorer
  • Site Crawl
  • Rank Tracking
  • Page Optimization
  • Competitive research
  • Local SEO tools
  • Fresh Web Explorer

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.

Moz

  • SEO auditsnot Postscript
  • Keyword researchnot Postscript
  • Link buildingnot Postscript
  • Local SEOnot Postscript
  • Competitive analysisnot Postscript

Postscript

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

Where each one falls short

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

Moz

  • Moz refreshes its link index less often and discovers fewer links than Ahrefs, so a new backlink frequently appears in Ahrefs days before it shows up in Link Explorer, which matters if link acquisition reporting is your job.
  • Rank tracking is weekly on every tier, so a site watching a volatile SERP or validating a same-week change cannot see daily movement without buying a separate rank tracker.
  • The Standard plan allows only 150 keyword queries a month, which a single afternoon of research exhausts, and the jump to a workable 5,000 queries means paying 179 USD a month rather than 99.
  • Almost every limit is separately metered and separately billable: extra seats are 49 USD each, campaigns 10 USD, tracked keywords 20 USD per 200, crawl capacity 15 USD per 50,000 pages, so the real bill drifts well above the plan price.
  • Domain Authority is a Moz score, not a Google ranking factor, and teams that optimise for it directly are optimising for a proxy that its own vendor sells.
  • Moz Local is a separate subscription per location, so a business with twenty sites is buying a second product at twenty times the per-location price on top of Moz Pro.

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

Moz

Free
  • Free toolsFree
    • Domain Analysis and Domain Authority lookups
    • Limited Keyword Explorer and Link Explorer queries
    • Competitive Research and Brand Authority checks
  • Starter$49/month
    • Entry plan for an individual managing a single website
    • Sits below Standard on the published pricing page
    • Upgrade path into the campaign-based tiers
  • Standard$99/month
    • 79 USD per month billed annually, 950 USD for the first year
    • 1 user seat
    • 3 campaigns and 300 tracked keyword rankings
  • Medium$179/month
    • 143 USD per month billed annually, 1,719 USD for the first year
    • 2 user seats
    • 10 campaigns and 1,500 tracked keyword rankings

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 Moz if

  • You need keyword explorer.
  • You want to start without paying.
  • You also want link explorer.
Moz review

Choose Postscript if

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

Questions people ask

Is Moz or Postscript better?
Neither clearly leads. Moz 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, Moz or Postscript?
Moz has a free tier; the other does not. Paid plans start at Free for Moz and $49/month for Postscript.
Does Moz or Postscript run on more platforms?
Moz runs on Web. Postscript runs on Web, iOS.
Can I use Moz for free?
Yes. Moz has a free tier, so you can try it without paying. Postscript starts at $49/month.
What is Moz best used for?
Moz is most often used for seo audits, keyword research, link building, local seo. Of those, seo audits and keyword research are not what Postscript is typically brought in for.
What can Moz do that Postscript cannot?
Moz covers Keyword Explorer, Link Explorer, Site Crawl, Rank Tracking. Postscript covers Shopify segmentation, Automated flows, Subscriber acquisition, Two-way conversations.

Answered from the vendors’ own pages

Moz: How much does Moz Pro cost?

Starter is 49 USD a month for a single site. Standard is 99 USD a month or 79 USD billed annually, Medium 179 or 143, and Large 299 or 239. Moz lists first-year annual totals of 950, 1,719 and 2,868 USD respectively.

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.

Moz: Is Moz or Ahrefs better?

Ahrefs is the stronger choice for backlink depth, index freshness and competitive research, and its Lite plan is 129 USD against Moz Standard at 99. Moz is the better buy if you need Domain Authority as a reportable metric, if local listings management matters, or if 49 USD a month for a single site is the budget.

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.

Moz: What do the Moz free tools give you?

Free Domain Analysis with Domain Authority, limited Keyword Explorer and Link Explorer queries, Competitive Research, a Brand Authority check and MozCast volatility tracking. Campaigns, site crawls and rank tracking all require a paid plan.

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.

Moz: Is Domain Authority a Google ranking factor?

No. It is a Moz model that predicts ranking strength on a 1 to 100 scale. Google does not use it. It is useful as a comparative shorthand, not as a target.

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.

Moz: How often does Moz update rankings?

Weekly on every Moz Pro tier. Competitors such as SE Ranking update daily as standard.

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