vioscale
Comparison

Courier vs Postmark

No clear leader: Courier (64.0) and Postmark (63.1) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Courier full profile →Postmark full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Courier64
Postmark63
Score
Vioscale score
Courier64 / 100medium · 72%
Postmark63 / 100low · 49%
Pricing
Free tier
Courier✓
Postmark✓
Model
Courierfreemium
Postmarkfreemium
Price level
Courierlow
Postmarklow
Transparent
Courier✓
Postmark✓
Integrations
Count
Courier4
Postmark22
Security
Disclosure policy
Courier✓
Postmark–
Gdpr
Courier✓
Postmark✓
Hipaa
Courier✓
Postmark–
Pci
Courier✓
Postmark–
Soc2
Courier✓
Postmark–
Reliability
Status page
Courier✓
Postmark✓
Market
Availability

Capabilities

Feature-by-feature on the axes that matter for communication apis. “-” means undocumented, not absent.

Channels
SMS
Courier✓
Postmark-
Voice
Courier✗
Postmark-
WhatsApp
Courier✗
Postmark-
RCS
Courier✗
Postmark-
Transactional email
Courier✓
Postmark✓
Video / real-time
Courier✗
Postmark-
In-app chat
Courier✓
Postmark-
Verify / OTP / 2FA
Courier✗
Postmark-
Messaging
Two-way messaging
Courier✗
Postmark✓
Reach
Geographic coverage
CourierGlobal
PostmarkGlobal
Delivery
Email deliverability tools
Courier✓
Postmark✓
Commercial
Published per-unit pricing
Courier✗
Postmark✓

What each one is

The product in its own terms, so the numbers below have context.

Courier

A messaging platform that orchestrates customer notifications across email, SMS, push, chat, and other channels through APIs, visual design tools, and automated journeys.

Independently observed

Postmark

A transactional email platform that sends emails through API and SMTP endpoints, with built-in capabilities for tracking delivery success, handling bounces, and processing inbound messages. Designed for developers who need to integrate email delivery into applications.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Courier

from $0.01/moUsage-basedFree tier

Free tier with 10,000 sends/month, then $0.005 per send. No per-seat or channel fees.

  • DeveloperFree
    • 10,000 sends per month
    • Journeys & broadcasts
    • MCP server, CLI, & SDKs
    • SSO via Google, Github
    • Email support
  • Business$0.005 per send
    • All Developer features
    • Pay-as-you-go pricing
    • AI Translations
    • AI Agent node
    • Email & chat support
  • EnterpriseContact sales
    • All Business features
    • Volume pricing
    • Dedicated Slack channel
    • Observability integrations
    • Role-based access control
    • +2 more
as of verify ↗

Postmark

from $1.20/moSubscriptionFree tier

From $15/mo. Free tier with 100 emails/month. Pay-as-you-go overages starting at $1.80 per 1,000 emails.

  • FreeFree
    • 100 emails/month
    • REST API
    • SMTP
    • Transactional email
    • Sandbox Mode
    • +3 more
  • Basic$15/mo + $1.80 per 1,000 overage emails
    • 10,000+ emails/month
    • Industry-leading deliverability
    • 45-day retention
    • 5 custom domains
    • Unlimited emails/day
    • +3 more
  • Pro$16.50/mo + $1.30 per 1,000 overage emails
    • 10,000+ emails/month
    • Industry-leading deliverability
    • Customizable retention up to 365 days
    • 10 custom domains
    • Unlimited emails/day
    • +5 more
  • Platform$18/mo + $1.20 per 1,000 overage emails
    • 10,000+ emails/month
    • Industry-leading deliverability
    • Customizable retention up to 365 days
    • Unlimited custom domains
    • Unlimited emails/day
    • +5 more
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Courier✓
Postmark✓
Deployment
Cloud / SaaS
Courier✓
Postmark✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Courier

4 total
  • Amply
  • AWS SES
  • Postmark
  • Mailgun
Independently observed

Postmark

22 total
  • Mailcoach
  • Datadog
  • Craft CMS
  • Customer.io
  • ActiveCampaign
  • Supabase
  • Bubble
  • Figma
  • Google Sheets
  • Gravity Forms
  • Gravity SMTP for WordPress
  • Netlify
  • Slack
  • Stripe
  • Stripo
  • Typeform
  • WordPress
  • WP Mail SMTP
  • Zapier
  • Tabular
  • SureTriggers
  • Marka Email Generator
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.