Softwr

Communication · head to head

Courier vs Resend

Courier logo

Courier

Communication

Notification infrastructure API for sending messages across channels

From
Free
Rated
-
Full reviewWebsite
Resend logo

Resend

Email Marketing

Email API for developers to send transactional and marketing email

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Courier enterprise-only features like RBAC and EU data residency require a custom sales conversation rather than a published plan.; Resend free tier is capped at 100 emails per day, which is restrictive for apps with bursty transactional volume.
  • They diverge on capability: Courier covers Multi-channel sending, Resend covers Email API and SDKs.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Courier and Resend actually diverge.

Attributes where Courier and Resend differ
AttributeCourierResend
Pricing modelusage-basedfreemium
CategoryCommunicationEmail Marketing

Identical on both: starting price (Free), free tier (Yes), platforms (web, api), 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 Courier

  • Multi-channel sending
  • Journeys and broadcasts
  • Digest and batching
  • AI translations
  • MCP server and CLI
  • Role-based access control

Only in Resend

  • Email API and SDKs
  • Domain management
  • Audience and contacts
  • Automation workflows
  • Email analytics
  • Dedicated IPs

What people use each for

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

Courier

  • Sending notifications across email, SMS, and push from one APInot Resend
  • Building automated notification journeysnot Resend
  • Digesting multiple alerts into a single messagenot Resend
  • Localizing notification content with AI translationnot Resend

Resend

  • Sending transactional emails from a web appnot Courier
  • Running marketing email campaigns to contact listsnot Courier
  • Automating onboarding or lifecycle email sequencesnot Courier
  • Tracking deliverability and engagement analyticsnot Courier

Where each one falls short

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

Courier

  • Enterprise-only features like RBAC and EU data residency require a custom sales conversation rather than a published plan.
  • Pay-as-you-go per-send pricing on Business can become costly at very high volume compared to flat committed pricing elsewhere.
  • The free Developer tier is capped at 10,000 sends per month, which is limiting for growing production apps.

Resend

  • Free tier is capped at 100 emails per day, which is restrictive for apps with bursty transactional volume.
  • Marketing and transactional plans are billed and priced separately, so a product needing both must budget for two tiers.
  • Dedicated IPs are only available on the Scale plan and require a minimum daily send volume.

Pricing, plan by plan

Courier

Free
  • DeveloperFree
    • 10,000 sends/month
    • Journeys and broadcasts
    • MCP server, CLI, and SDKs
  • Business$undefined/month
    • $0.005 per send pay-as-you-go
    • AI translations
    • AI agent node
  • Enterprise$undefined/month
    • Volume discounts
    • Dedicated Slack channel
    • Role-based access control

Resend

Free
  • FreeFree
    • 3,000 emails/month
    • 100 emails/day
    • 3 domains
  • Pro$20/month
    • 50,000 emails/month
    • 10 domains
    • 100 AI credits/month
  • Scale$90/month
    • 100,000 emails/month
    • 1,000 domains
    • Slack and ticket support

Which should you pick?

Choose Courier if

  • You need multi-channel sending.
  • You want to start without paying.
  • You work on web, api.
  • You also want journeys and broadcasts.
Courier review

Choose Resend if

  • You need email api and sdks.
  • You want to start without paying.
  • You work on web, api.
  • You also want domain management.
Resend review

Questions people ask

Is Courier or Resend better?
Neither clearly leads. Courier starts at Free and Resend at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Courier or Resend?
Courier starts at Free and Resend at Free.
Does Courier or Resend run on more platforms?
Both run on web, api, so platform support will not decide this one for you.
Can I use Courier for free?
Both have a free tier, so you can try either at no cost before committing.
What is Courier best used for?
Courier is most often used for sending notifications across email, sms, and push from one api, building automated notification journeys, digesting multiple alerts into a single message, localizing notification content with ai translation. Of those, sending notifications across email, sms, and push from one api and building automated notification journeys are not what Resend is typically brought in for.
What can Courier do that Resend cannot?
Courier covers Multi-channel sending, Journeys and broadcasts, Digest and batching, AI translations. Resend covers Email API and SDKs, Domain management, Audience and contacts, Automation workflows.

Answered from the vendors’ own pages

Courier: What does Courier cost?

Courier has three plans: Developer is free for 10,000 sends per month, Business is pay-as-you-go at $0.005 per send, and Enterprise is custom-priced with volume discounts.

Source
Resend: What does Resend cost?

Transactional email starts free for 3,000 emails/month, then Pro is $20/month for 50,000 emails and Scale ranges from $90 to $1,150/month for up to 2.5M emails. Marketing email is priced separately by contact count, starting free for 1,000 contacts.

Source
Courier: Is there a free plan, and what are its limits?

Yes, the Developer plan is free and includes 10,000 notification sends per month along with journeys, broadcasts, the MCP server, CLI, SDKs, and email support.

Source
Resend: Is there a free plan, and what are its limits?

Yes, the free transactional plan allows 3,000 emails per month capped at 100 per day across 3 domains, and the free marketing plan allows up to 1,000 contacts.

Source
Courier: How is usage metered?

Courier bills based on the number of notifications sent, not on team size or number of channels used, with Business plan sends charged at $0.005 each.

Source
Resend: How is usage metered?

Transactional plans are metered by number of emails sent, with overage billed per 1,000 emails. Marketing plans are metered by number of contacts rather than emails sent.

Source
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