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Marketing · head to head

Customer.io vs Supermetrics

Customer.io logo

Customer.io

Marketing

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

From
$15/month
Rated
-
Full reviewWebsite
Supermetrics logo

Supermetrics

Marketing

Bring all your marketing data into one place

From
€49/month
Rated
-
Full reviewWebsite

The short version

  • 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; Supermetrics every package includes only 1 core destination; sending the same data to a second destination is a paid extra
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where Customer.io and Supermetrics differ
AttributeCustomer.ioSupermetrics
Starting price$15/month€49/month
PlatformsWebWeb, Google-sheets, Data-studio, Excel, Api
FoundedUnknown2010

Identical on both: pricing model (subscription), 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 Customer.io

Nothing recorded that Supermetrics does not also cover.

Only in Supermetrics

  • Multi-source data connectors
  • Real-time data sync
  • Custom dimensions
  • Data blending
  • Scheduled reports
  • API access
  • Data transformation
  • Visualization

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 Supermetrics
  • Personalizing email and SMS campaigns using customer profilesnot Supermetrics
  • Triggering automated messages based on user behaviornot Supermetrics
  • Coordinating cross-team messaging without rebuilding campaignsnot Supermetrics

Supermetrics

  • Pulling marketing platform data into Google Sheets, Looker Studio, Excel or Power BInot Customer.io
  • Loading advertising data into BigQuery or Snowflake for reportingnot Customer.io
  • Automating recurring client marketing reports at an agencynot 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

Supermetrics

  • Every package includes only 1 core destination; sending the same data to a second destination is a paid extra
  • The Starter plan at 49 EUR per month billed monthly includes 1 user, 3 data sources and 3 accounts per data source
  • Data refreshes are weekly on Starter, daily on Growth and hourly on Pro; on-demand refreshes require Enterprise
  • Refresh scheduling on those tiers is stated for Google Sheets only
  • Snowflake and BigQuery data warehouse destinations require the Enterprise package
  • SAML SSO is Enterprise only; lower tiers get basic single sign-on
  • Data transformations, data residency and region control, multiple teams and Management API access are Enterprise only
  • Enterprise carries no published price and is quote only
  • The 20% saving is only available on yearly billing
  • AI credits are metered per plan at 4,000 monthly on Starter and 12,000 on Growth

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

Supermetrics

€49/month
  • Starter$49/month
    • 1 core destination
    • 3 data sources
    • 1 user
  • Growth$199/month
    • 1 core destination
    • 7 data sources
    • 2 users
  • Pro$499/month
    • 1 core destination
    • 10 data sources
    • 3 users

Which should you pick?

Choose Customer.io if

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

Customer.io review

Choose Supermetrics if

  • You need multi-source data connectors.
  • You work on Web, Google-sheets, Data-studio, Excel, Api.
  • You also want real-time data sync.
Supermetrics review

Questions people ask

Is Customer.io or Supermetrics better?
Neither clearly leads. Customer.io starts at $15/month and Supermetrics at €49/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Customer.io or Supermetrics?
Customer.io starts at $15/month and Supermetrics at €49/month.
Does Customer.io or Supermetrics run on more platforms?
Customer.io runs on Web. Supermetrics runs on Web, Google-sheets, Data-studio, Excel, Api.
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 Supermetrics is typically brought in for.
What can Customer.io do that Supermetrics cannot?
Supermetrics covers Multi-source data connectors, Real-time data sync, Custom dimensions, Data blending.

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
Supermetrics: How much does Supermetrics cost?

Supermetrics offers three subscription plans: Starter at EUR 49 per month, Growth at EUR 199 per month, and Pro at EUR 499 per month. Annual billing provides a 20% discount. Enterprise plans require a custom quote.

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
Supermetrics: Can I add extra users or data sources to my Supermetrics plan?

Yes, additional features are available for all plans. Additional users cost EUR 29 to EUR 124 per month depending on plan tier, and additional data sources cost EUR 29 to EUR 37 per month. Additional destinations and ad accounts also carry separate monthly fees.

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
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