TrackRival
PricingCompareProductsChangelogSign inGet early access
TrackRival

Pricing and changelog intelligence for founders who want signal without babysitting competitor pages.

© 2026 TrackRival

Product
CompareChangelogWaitlist
Resources
CategoriesProduct pagesCompare indexDigestBlog
Legal
PrivacyTerms
Home/Compare/Customer.io vs Mailgun

Customer.io vs Mailgun

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 →

Mailgun

Email sending, validation, and deliverability tools.

Visit →
Category
email
Plans tracked
—
Entry price
—
Free plan?
—
See full Mailgun pricing & changelog →

Plan-by-plan pricing

Customer.io

Pricing data is being collected.

Mailgun

Pricing data is being collected.

Customer.io vs Mailgun FAQ

Customer.io vs Mailgun: which is cheaper?
TrackRival snapshots both daily - see the plan tables above for the latest tracked tiers.
Does Customer.io or Mailgun have a free plan?
Neither Customer.io nor Mailgun shows a free plan in the latest snapshot.
Is Customer.io a good email alternative to Mailgun?
Customer.io and Mailgun are both tracked in TrackRival's email category. Use the changelog section below to compare shipping cadence, not just headline pricing.
How often is this Customer.io vs Mailgun comparison updated?
TrackRival refreshes pricing snapshots daily and appends new changelog entries whenever either product ships a release.

Which should you pick?

Both Customer.io and Mailgun compete in the email space.

  • Choose Customer.io if you value: messaging automation for lifecycle and product email.
  • Choose Mailgun if you value: email sending, validation, and deliverability tools.
  • 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.

Related comparisons

  • Resend vs Mailgun
  • Postmark vs Mailgun
  • Loops vs Mailgun
  • SendGrid vs Mailgun
  • Brevo vs Mailgun
  • MailerSend vs Mailgun