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Marketing · head to head

Kissmetrics vs Postmark

Kissmetrics logo

Kissmetrics

Marketing

Customer analytics and behavioral data

From
Free
Rated
-
Full reviewWebsite
Postmark logo

Postmark

Marketing

No hidden fees, no guesswork. Just the features you need, at a price that makes sense

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Kissmetrics has a free tier, so it costs nothing to try first.
  • Each has a real cost: Kissmetrics overages are added automatically to the next invoice rather than blocked, so exceeding an event allowance bills without a decision point; Postmark free tier caps at 100 emails per month with no overages allowed
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Kissmetrics and Postmark actually diverge.

Attributes where Kissmetrics and Postmark differ
AttributeKissmetricsPostmark
Starting priceFreeOn request
Pricing modelfreemiumUnknown
Free tierYesNo
Founded2009Unknown

Identical on both: platforms (Web), 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 Kissmetrics

  • Customer analytics
  • Behavioral tracking
  • Cohort analysis
  • Funnel analysis
  • Salesforce
  • GDPR
  • Cloud deployment
  • Web support

Only in Postmark

Nothing recorded that Kissmetrics does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Kissmetrics

  • Product analytics and user behavior trackingnot Postmark
  • Event-based analyticsnot Postmark
  • Data integration and reportingnot Postmark

Postmark

  • Sending password reset emails with industry-leading delivery speednot Kissmetrics
  • Processing inbound email replies into JSON objects for applicationsnot Kissmetrics
  • Tracking failed email deliveries and suppressing invalid addressesnot Kissmetrics
  • Separating transactional emails from marketing emails with message streamsnot Kissmetrics

Where each one falls short

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

Kissmetrics

  • Overages are added automatically to the next invoice rather than blocked, so exceeding an event allowance bills without a decision point
  • The free plan allows 100,000 events a month
  • Per event rates fall with volume, from $0.20 per 1,000 events on Growth to $0.10 on Gold, so smaller customers pay double per event
  • The vendor states Growth, Silver and Gold are the identical product, so the paid tiers differ only in unit price and volume
  • Anything above 5 million events is custom priced

Postmark

  • Free tier caps at 100 emails per month with no overages allowed
  • Basic plan ($15/mo) includes 10,000 emails then charges $1.80 per 1,000 extra; Pro and Platform tiers have their own lower per-1,000 overage rates ($1.30 and $1.20), so cost scales per email beyond the included volume
  • Custom high-volume pricing above the published tiers requires contacting sales

Pricing, plan by plan

Kissmetrics

Free
  • FreeFree
    • 100,000 events/month
    • Autocapture tracking
    • AI chat
  • Growth$99/month
    • Starting at 500k events
    • $0.20 per 1k events
    • Populations
  • Silver$null/month
    • $0.15 per 1k events
    • All Growth features
  • Gold$null/month
    • $0.10 per 1k events (at 5M+ events)
    • All Growth features

Postmark

On request

No published plan breakdown. See the Postmark review.

Which should you pick?

Choose Kissmetrics if

  • You need customer analytics.
  • You want to start without paying.
  • You also want behavioral tracking.
Kissmetrics review

Choose Postmark if

Nothing in the data separates Postmark from Kissmetrics on the points above - pick on price and on how each one feels to use.

Postmark review

Questions people ask

Is Kissmetrics or Postmark better?
Neither clearly leads. Kissmetrics starts at Free and Postmark at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Kissmetrics or Postmark?
Kissmetrics has a free tier; the other does not. Paid plans start at Free for Kissmetrics and On request for Postmark.
Does Kissmetrics or Postmark run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Kissmetrics for free?
Yes. Kissmetrics has a free tier, so you can try it without paying. Postmark starts at On request.
What is Kissmetrics best used for?
Kissmetrics is most often used for product analytics and user behavior tracking, event-based analytics, data integration and reporting. Of those, product analytics and user behavior tracking and event-based analytics are not what Postmark is typically brought in for.
What can Kissmetrics do that Postmark cannot?
Kissmetrics covers Customer analytics, Behavioral tracking, Cohort analysis, Funnel analysis.

Answered from the vendors’ own pages

Kissmetrics: Does KISSmetrics have a free plan?

Yes, KISSmetrics offers a free plan with 100,000 events/month including autocapture tracking, dashboards, and core reports. No card required.

Source
Postmark: What is the cheapest paid plan for Postmark email sending?

Postmark Basic plan is $15/month for 10,000 emails, with overages at $1.80 per 1,000 additional emails. Free tier limited to 100/month. No annual billing discount available. Source: https://www.postmarkapp.com/pricing

Source
Kissmetrics: What does KISSmetrics charge for paid plans?

Growth plan starts at $99/month for 500k events, charging $0.20 per additional 1k events. Silver and Gold tiers offer lower per-event rates at higher volumes.

Source
Postmark: How are Postmark email overages calculated?

Overages are calculated at month-end and billed with your next plan cost. Basic tier overages: $1.80 per 1,000; Pro: $1.30 per 1,000; Platform: $1.20 per 1,000. Unused monthly emails do not carry over. Source: https://www.postmarkapp.com/pricing

Source
Kissmetrics: Does KISSmetrics offer annual discounts?

Yes, annual plans receive 20% off monthly rates. Overage charges are automatically added to the next invoice.

Source
Postmark: What payment methods does Postmark accept?

Postmark accepts Visa, MasterCard, American Express, Diners Club, and JCB. No PayPal or purchase orders accepted. Bootstrapped startups can request a $75 account credit. Source: https://www.postmarkapp.com/pricing

Source
Postmark: Can I get a dedicated IP on Postmark without high volume?

No. Postmark dedicated IPs require minimum 300,000 emails per month and start at $50/month. Alternative: use Postmark's shared infrastructure included in all tiers. Source: https://www.postmarkapp.com/pricing

Source
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