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Home/Compare/FusionAuth vs Customer.io

FusionAuth vs Customer.io

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

FusionAuth

Downloadable and hosted auth for engineering teams.

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Category
auth
Plans tracked
—
Entry price
—
Free plan?
—
See full FusionAuth pricing & changelog →

Customer.io

Messaging automation for lifecycle and product email.

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

Plan-by-plan pricing

FusionAuth

Pricing data is being collected.

Customer.io

Pricing data is being collected.

FusionAuth vs Customer.io FAQ

FusionAuth vs Customer.io: which is cheaper?
TrackRival snapshots both daily - see the plan tables above for the latest tracked tiers.
Does FusionAuth or Customer.io have a free plan?
Neither FusionAuth nor Customer.io shows a free plan in the latest snapshot.
Is FusionAuth a good auth alternative to Customer.io?
FusionAuth is tracked in auth, while Customer.io overlaps for similar buyers. Use the changelog section below to compare shipping cadence before you choose.
How often is this FusionAuth vs Customer.io comparison updated?
TrackRival refreshes pricing snapshots daily and appends new changelog entries whenever either product ships a release.

Which should you pick?

Both FusionAuth and Customer.io serve overlapping audiences (FusionAuth in auth, Customer.io in email).

  • Choose FusionAuth if you value: downloadable and hosted auth for engineering teams.
  • Choose Customer.io if you value: messaging automation for lifecycle and product email.
  • 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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