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Home/Compare/Postmark vs WorkOS

Postmark vs WorkOS

A side-by-side comparison of pricing, plans, and recent product updates. Pricing data last refreshed May 14, 2026.

Postmark

Reliable transactional email.

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Category
email
Plans tracked
4
Entry price
$15/mo
Free plan?
Yes
See full Postmark pricing & changelog →

WorkOS

Your app, enterprise ready.

Visit →
Category
auth
Plans tracked
2
Entry price
Custom
Free plan?
No
See full WorkOS pricing & changelog →

Plan-by-plan pricing

Postmark

Free

Postmark

Free
  • Test your integration with 100 emails/month
  • No overages allowed in this plan
  • Perfect for testing and side projects with low volume
  • Up to 10 custom sending domains
  • Up to 10 servers
  • + 1 more

Basic

Postmark

$15/mo
  • Extra emails @ $1.80 / 1,000
  • Industry-leading deliverability rates & speed
  • 45-day data retention
  • 5 Custom sending domains
  • Unlimited emails/day
  • + 1 more

Pro

Postmark

$16.5/mo
  • Extra emails @ $1.30 / 1,000
  • Customizable data retention up to 365 days (45-day default)
  • 10 Custom sending domains
  • Inbound email processing
  • Unlimited emails/day
  • + 1 more

Platform

Postmark

$18/mo
  • Extra emails @ $1.20 / 1,000
  • Customizable data retention up to 365 days (45-day default)
  • Unlimited Custom sending domains
  • Inbound email processing
  • Unlimited users
  • + 1 more

WorkOS

Pay as you go

WorkOS

-
  • Automatic volume discounts
  • First 1 million active users free
  • Deploy in minutes
  • Dedicated Slack channel
  • Transparent pricing

Annual Credits

WorkOS

Custom
  • Pre-pay credit discounts
  • 99.99% uptime SLA
  • Guided migration and onboarding
  • Guaranteed support SLA

Postmark vs WorkOS FAQ

Postmark vs WorkOS: which is cheaper?
Postmark starts at $15/mo, while WorkOS starts at an unpublished tier. TrackRival snapshots both daily as plan pages change.
Does Postmark or WorkOS have a free plan?
Postmark shows a free plan in the latest snapshot, while WorkOS does not.
Is Postmark a good email alternative to WorkOS?
Postmark is tracked in email, while WorkOS overlaps for similar buyers. Use the changelog section below to compare shipping cadence before you choose.
How often is this Postmark vs WorkOS comparison updated?
TrackRival refreshes pricing snapshots daily and appends new changelog entries whenever either product ships a release.

Recent product updates

What each team shipped most recently.

Postmark

No recent updates tracked.

See all Postmark updates →

WorkOS

  • May 13, 2026
    Resource indicators for MCP Auth

    WorkOS now lets you manage access to specific MCP servers with resource indicators.

  • Apr 24, 2026
    IT Contacts

    WorkOS now allows multiple IT contacts to be managed in the Admin Portal.

  • Apr 22, 2026
    Groups API

    WorkOS now offers a Groups API to organize user memberships.

See all WorkOS updates →

Which should you pick?

Both Postmark and WorkOS serve overlapping audiences (Postmark in email, WorkOS in auth).

  • Choose Postmark if you value: reliable transactional email.
  • Choose WorkOS if you value: your app, enterprise ready.
  • Subscribe to TrackRival if you want to be notified whenever either of them changes pricing or ships a major update — so you can react before your competitors do.

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