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Home/Compare/Customer.io vs WorkOS

Customer.io vs WorkOS

A side-by-side comparison of pricing, plans, and recent product updates. Pricing data syncs daily once the product launches.

Customer.io

Messaging automation for lifecycle and product email.

Visit →
Category
email
Plans tracked
—
Entry price
—
Free plan?
—
See full Customer.io 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

Customer.io

Pricing data is being collected.

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

Customer.io vs WorkOS FAQ

Customer.io vs WorkOS: which is cheaper?
TrackRival snapshots both daily - see the plan tables above for the latest tracked tiers.
Does Customer.io or WorkOS have a free plan?
Neither Customer.io nor WorkOS shows a free plan in the latest snapshot.
Is Customer.io a good email alternative to WorkOS?
Customer.io 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 Customer.io 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.

Customer.io

No recent updates tracked.

See all Customer.io 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 Customer.io and WorkOS serve overlapping audiences (Customer.io in email, WorkOS in auth).

  • Choose Customer.io if you value: messaging automation for lifecycle and product 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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