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Marketing · head to head

Customer.io vs Kissmetrics

Customer.io logo

Customer.io

Marketing

Data-driven messaging for teams getting started, scaling and beyond

From
$15/month
Rated
-
Full reviewWebsite
Kissmetrics logo

Kissmetrics

Marketing

Customer analytics and behavioral data

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Kissmetrics has a free tier, so it costs nothing to try first.
  • Each has a real cost: Customer.io essentials plan caps at 5,000 profiles (people and objects) and 1,000,000 monthly emails, with overages billed at $0.12 per 1,000 emails beyond that; Kissmetrics overages are added automatically to the next invoice rather than blocked, so exceeding an event allowance bills without a decision point
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Customer.io and Kissmetrics actually diverge.

Attributes where Customer.io and Kissmetrics differ
AttributeCustomer.ioKissmetrics
Starting price$15/monthFree
Pricing modelsubscriptionfreemium
Free tierNoYes
FoundedUnknown2009

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 Customer.io

Nothing recorded that Kissmetrics does not also cover.

Only in Kissmetrics

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

What people use each for

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

Customer.io

  • Orchestrating multi-channel customer journeys from signup to retentionnot Kissmetrics
  • Personalizing email and SMS campaigns using customer profilesnot Kissmetrics
  • Triggering automated messages based on user behaviornot Kissmetrics
  • Coordinating cross-team messaging without rebuilding campaignsnot Kissmetrics

Kissmetrics

  • Product analytics and user behavior trackingnot Customer.io
  • Event-based analyticsnot Customer.io
  • Data integration and reportingnot Customer.io

Where each one falls short

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

Customer.io

  • Essentials plan caps at 5,000 profiles (people and objects) and 1,000,000 monthly emails, with overages billed at $0.12 per 1,000 emails beyond that
  • Standard and Premium tiers show custom pricing only, and Enterprise is negotiated rate, so three of the four published tiers require a sales conversation
  • Monthly plans accept credit card only; annual billing via invoice (ACH/wire) requires the annual commitment

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

Pricing, plan by plan

Customer.io

$15/month
  • Essentials$15/month
    • Base profiles starting at 5,000
    • Email sends: 1 million monthly
    • Community and email support
  • Standard$null/month
    • Mid-tier scaling across channels
    • Higher profile and email allowances
    • Email and priority support
  • Premium$null/month
    • Advanced custom workflows
    • Dedicated support
  • Enterprise$null/month
    • Custom pricing for dedicated infrastructure
    • HIPAA compliance
    • Dedicated hardware

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

Which should you pick?

Choose Customer.io if

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

Customer.io review

Choose Kissmetrics if

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

Questions people ask

Is Customer.io or Kissmetrics better?
Neither clearly leads. Customer.io starts at $15/month and Kissmetrics at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Customer.io or Kissmetrics?
Kissmetrics has a free tier; the other does not. Paid plans start at $15/month for Customer.io and Free for Kissmetrics.
Does Customer.io or Kissmetrics 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. Customer.io starts at $15/month.
What is Customer.io best used for?
Customer.io is most often used for orchestrating multi-channel customer journeys from signup to retention, personalizing email and sms campaigns using customer profiles, triggering automated messages based on user behavior, coordinating cross-team messaging without rebuilding campaigns. Of those, orchestrating multi-channel customer journeys from signup to retention and personalizing email and sms campaigns using customer profiles are not what Kissmetrics is typically brought in for.
What can Customer.io do that Kissmetrics cannot?
Kissmetrics covers Customer analytics, Behavioral tracking, Cohort analysis, Funnel analysis.

Answered from the vendors’ own pages

Customer.io: How much does Customer.io Essentials cost?

Customer.io Essentials starts at $15/month and includes 5,000 base profiles with 1 million monthly email sends, community and email support, and data-driven messaging tools. Customers can choose monthly or annual billing.

Source
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
Customer.io: What are Customer.io's usage-based add-on costs?

Beyond plan limits, Customer.io charges $0.009 per additional profile, $0.12 per 1,000 additional emails, and $10 per 100K AI credits. Messages exceeding plan limits are charged at nominal rates. Billing occurs on the subscription anniversary.

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
Customer.io: Does Customer.io offer a startup discount?

Yes, early-stage companies that have raised under $10 million qualify for a full year free through Customer.io's Startup Program with annual billing.

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
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