vioscale
Comparison

Bird vs Postmark

No clear leader: Bird (68.0) 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.

Bird full profile →Postmark full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Bird68
Postmark63
Score
Vioscale score
Bird68 / 100medium · 64%updating
Postmark63 / 100low · 49%updating
Pricing
Free tier
Bird✓
Postmark✓
Model
Birdfreemium
Postmarkfreemium
Price level
Birdlow
Postmarklow
Transparent
Bird✓
Postmark✓
Integrations
Count
Bird–
Postmark22
Security
Disclosure policy
Bird✓
Postmark–
Gdpr
Bird✓
Postmark✓
Hipaa
Bird✓
Postmark–
Soc2
Bird✓
Postmark–
Reliability
Status page
Bird✓
Postmark✓
Market
Availability

Capabilities

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

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

What each one is

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

Bird

Multi-channel communications platform enabling email, SMS, voice, WhatsApp, and real-time messaging through a single API designed for developers and AI agents.

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.

Bird

from $0.80/moUsage-basedFree tier

Free tier with 1000 emails/month. Startup from $15/month. Growth from $80/month with volume-based pricing declining to $0.42 per 1000 emails.

  • FreeFree
    • 1 webhook endpoint
    • 1 sending domain
    • Shared sending IP
  • Startup$15/month for 50K emails or $30/month for 100K
    • 1 webhook endpoint
    • 10 sending domains
    • Shared sending IP
  • GrowthFrom $80/month at 100K emails. Per-message rate declines to $0.42 per 1000 at 2.5M volume
    • 10 webhook endpoints
    • 1000 sending domains
    • Dedicated IPs available as add-on
  • EnterpriseContact sales
    • Negotiated per-message rates
    • Multi-year invoiced billing
    • Overage cap lifted by agreement
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
Bird✓
Postmark✓
iOS
Bird✓
Postmark✗
Android
Bird✓
Postmark✗
CLI
Bird✓
Postmark✗
Deployment
Cloud / SaaS
Bird✓
Postmark✓

Integrations

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

Bird

Not documented yet.

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.