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Marketing · head to head

Customer.io vs SEMrush

Customer.io logo

Customer.io

Marketing

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

From
On request
Rated
-
Full reviewWebsite
SEMrush logo

SEMrush

All industries

Do SEO, content marketing, competitor research, PPC and social media marketing from just one platfor

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only SEMrush 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; SEMrush free tier limited to 10 reports per day across all tools

Where they differ

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

Attributes where Customer.io and SEMrush differ
AttributeCustomer.ioSEMrush
Starting priceOn requestFree
Pricing modelsubscriptionfreemium
Free tierNoYes
PlatformsWebWeb, Mobile app
CategoryMarketingAll industries
FoundedUnknown2008

Identical on both: user rating (Not yet rated).

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 SEMrush does not also cover.

Only in SEMrush

  • Keyword research
  • Site audit
  • Competitor analysis
  • Backlink analytics
  • Rank tracking
  • Content marketing
  • PPC research
  • Social media tools

What people use each for

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

Customer.io

No use cases recorded yet. See the Customer.io review.

SEMrush

  • SEO keyword research and competitor analysisnot Customer.io
  • Website performance tracking and auditingnot Customer.io
  • Content marketing optimizationnot Customer.io
  • PPC advertising researchnot 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

SEMrush

  • Free tier limited to 10 reports per day across all tools
  • Keyword tracking capped at 500 per month on entry tiers (SEO and Starter plans)
  • Additional users cost £45/month per user above base subscription
  • Most advanced features require Advanced plan (£455.67/month), making entry cost significant for small teams

Pricing, plan by plan

Customer.io

On request

No published plan breakdown. See the Customer.io review.

SEMrush

Free

No published plan breakdown. See the SEMrush review.

Which should you pick?

Choose Customer.io if

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

Customer.io review

Choose SEMrush if

  • You need keyword research.
  • You want to start without paying.
  • You work on Web, Mobile app.
  • You also want site audit.
SEMrush review

Questions people ask

Is Customer.io or SEMrush better?
Neither clearly leads. Customer.io starts at On request and SEMrush at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Customer.io or SEMrush?
SEMrush has a free tier; the other does not. Paid plans start at On request for Customer.io and Free for SEMrush.
Does Customer.io or SEMrush run on more platforms?
Customer.io runs on Web. SEMrush runs on Web, Mobile app.
Can I use SEMrush for free?
Yes. SEMrush has a free tier, so you can try it without paying. Customer.io starts at On request.
What can Customer.io do that SEMrush cannot?
SEMrush covers Keyword research, Site audit, Competitor analysis, Backlink analytics.
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Related pages

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