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Email Marketing · head to head

Campaign Monitor vs Keila

Campaign Monitor logo

Campaign Monitor

Email Marketing

Email marketing platform priced by contact tier, with unlimited sends only from the mid tier up

From
On request
Rated
-
Full reviewWebsite
Keila logo

Keila

Email Marketing

AGPL newsletter tool from Germany, self-hostable or hosted in the EU with no free plan

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Keila has a free tier, so it costs nothing to try first.
  • Each has a real cost: Campaign Monitor the Lite tier caps monthly sends at 2,500 regardless of contact list size, so a list of any meaningful size cannot be emailed even once a month without exceeding it.; Keila there is no free hosted plan at all, stated as deliberate policy, so unlike almost every competitor there is no way to run a small list at zero cost without self-hosting it yourself.
  • They diverge on capability: Campaign Monitor covers Drag-and-drop email builder, Keila covers Priced by emails sent.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Campaign Monitor and Keila actually diverge.

Attributes where Campaign Monitor and Keila differ
AttributeCampaign MonitorKeila
Starting priceOn requestFree
Pricing modelPer month by contact tier and plan levelPer month by emails sent
Free tierNoYes
PlatformsWebWeb, Linux, Self-hosted

Identical on both: user rating (Not yet rated), category (Email 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 Campaign Monitor

  • Drag-and-drop email builder
  • Automation workflows
  • List segmentation
  • Send-time optimisation
  • Landing pages and forms
  • Multi-brand management

Only in Keila

  • Priced by emails sent
  • Bring your own sender
  • Self-hosting
  • EU hosting
  • Sign-up forms
  • Segmentation
  • Markdown and block editor
  • Multiple projects

What people use each for

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

Campaign Monitor

  • A small marketing team wanting straightforward campaign design and automation without a full martech stacknot Keila
  • A business with a list under a few thousand contacts and infrequent sends, where the Lite tier's cap is not a real constraintnot Keila
  • An agency managing multiple brands wanting Enterprise-tier multi-brand account managementnot Keila
  • A team wanting a bundled website builder alongside email on the Premier tiernot Keila

Keila

  • A membership organisation holding forty thousand contacts but sending only one newsletter a month, where contact-metered pricing would cost many times morenot Campaign Monitor
  • A European publisher or public body that needs subscriber data held in the EU under a GDPR-friendly arrangementnot Campaign Monitor
  • A technical team that wants to self-host its newsletter tool and route sending through its existing AWS SES accountnot Campaign Monitor
  • An agency running several separate client lists that does not want to pay per project or per additional listnot Campaign Monitor

Where each one falls short

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

Campaign Monitor

  • The Lite tier caps monthly sends at 2,500 regardless of contact list size, so a list of any meaningful size cannot be emailed even once a month without exceeding it.
  • Unlimited sending only starts at the Essentials tier, so the cheap headline Lite price is not comparable to competitors that offer unlimited sends at their entry tier.
  • Its e-commerce-specific automation (abandoned cart flows, predictive segments) is less developed than Klaviyo's, making it a weaker fit for retail-heavy senders.
  • As part of the Marigold group alongside Sailthru and other acquired brands, product roadmap priority is shared across a portfolio rather than dedicated solely to Campaign Monitor.
  • Pricing multiplies on two axes, contact tier and plan level, so estimating total cost requires checking both dimensions rather than a single number.

Keila

  • There is no free hosted plan at all, stated as deliberate policy, so unlike almost every competitor there is no way to run a small list at zero cost without self-hosting it yourself.
  • Marketing automation is minimal, with none of the behavioural triggers, journey builders or e-commerce revenue attribution that Klaviyo, Brevo and Mailchimp treat as table stakes.
  • The self-hosted route puts deliverability entirely on you: reputation, SPF, DKIM, DMARC, warm-up and bounce handling are your problem, and a badly configured instance will land in spam folders.
  • It is a small project from a small company, so the integration ecosystem is thin and there is no partner network, template marketplace or large body of community expertise to draw on.
  • Email volume tiers step in fixed blocks, so an organisation whose sending is uneven across the year either overbuys at the annual peak or has to change plan repeatedly.

Pricing, plan by plan

Campaign Monitor

On request
  • Lite$undefined/month
    • Monthly send cap of 2,500 emails regardless of list size
    • Basic campaign and template tools
    • Priced by contact tier from under 500 to 50,000+
  • Essentials$undefined/month
    • Unlimited monthly email sends
    • Priority support
    • Priced by contact tier from under 500 to 50,000+
  • Premier$undefined/month
    • Unlimited monthly email sends
    • Premier-level phone support
    • Drag-and-drop website builder included
  • Enterprise$undefined/year
    • Custom quote
    • Multi-brand account management
    • Dedicated account manager, SOC2 and GDPR-aligned security

Keila

Free
  • Self-hostedFree
    • AGPL-3.0-or-later licence with no fee
    • Official Docker image and sample compose file
    • You supply hosting and a sending backend
  • Keila XS$8/month
    • Two thousand emails per month
    • Unlimited contacts and projects
    • Send with Keila or bring your own email server
  • Keila M$32/month
    • Fifteen thousand emails per month
    • Unlimited contacts and projects
    • Sign-up forms and segmentation
  • Keila XXL$256/month
    • Two hundred and fifty thousand emails per month
    • Unlimited contacts and projects
    • Intermediate tiers at 16, 64 and 128 EUR for 5,000, 50,000 and 100,000 emails

Which should you pick?

Choose Campaign Monitor if

  • You need drag-and-drop email builder.
  • You also want automation workflows.
Campaign Monitor review

Choose Keila if

  • You need priced by emails sent.
  • You want to start without paying.
  • You work on Web, Linux, Self-hosted.
  • You also want bring your own sender.
Keila review

Questions people ask

Is Campaign Monitor or Keila better?
Neither clearly leads. Campaign Monitor starts at On request and Keila at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Campaign Monitor or Keila?
Keila has a free tier; the other does not. Paid plans start at On request for Campaign Monitor and Free for Keila.
Does Campaign Monitor or Keila run on more platforms?
Campaign Monitor runs on Web. Keila runs on Web, Linux, Self-hosted.
Can I use Keila for free?
Yes. Keila has a free tier, so you can try it without paying. Campaign Monitor starts at On request.
What is Campaign Monitor best used for?
Campaign Monitor is most often used for a small marketing team wanting straightforward campaign design and automation without a full martech stack, a business with a list under a few thousand contacts and infrequent sends, where the lite tier's cap is not a real constraint, an agency managing multiple brands wanting enterprise-tier multi-brand account management, a team wanting a bundled website builder alongside email on the premier tier. Of those, a small marketing team wanting straightforward campaign design and automation without a full martech stack and a business with a list under a few thousand contacts and infrequent sends, where the lite tier's cap is not a real constraint are not what Keila is typically brought in for.
What can Campaign Monitor do that Keila cannot?
Campaign Monitor covers Drag-and-drop email builder, Automation workflows, List segmentation, Send-time optimisation. Keila covers Priced by emails sent, Bring your own sender, Self-hosting, EU hosting.

Answered from the vendors’ own pages

Campaign Monitor: Does the cheapest plan include unlimited sends?

No. Lite caps monthly sends at 2,500 emails regardless of list size; unlimited sending starts at the Essentials tier.

Keila: Is Keila free?

The software is, under AGPL-3.0-or-later, if you self-host. The hosted service has no free plan by deliberate policy and starts at 8 EUR a month.

Campaign Monitor: Who owns Campaign Monitor?

Marigold, a marketing technology group that also owns Sailthru and other acquired email and loyalty platforms.

Keila: How is the hosted service priced?

By emails sent, from 8 EUR for two thousand up to 256 EUR for two hundred and fifty thousand a month. Contacts and projects are unlimited on every tier.

Campaign Monitor: Is there a free plan?

A 30-day free trial with a 500-contact limit is available, but there is no permanent free tier.

Keila: Can I use my own email provider?

Yes. AWS SES, Sendgrid, Mailgun, Postmark, generic SMTP or a personal inbox are all supported as sending backends.

Keila: Are there discounts?

Pentacent offers reduced rates to nonprofits and open source projects on request.

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