Softwr

Marketing · head to head

Mailgun vs Unbounce

Mailgun logo

Mailgun

Marketing

Email delivery built for developers

From
Free
Rated
-
Full reviewWebsite
Unbounce logo

Unbounce

Marketing

Landing page platform with AI-powered conversion optimisation.

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Mailgun free tier limited to 100 emails per day, restricting high-volume use cases; Unbounce starter tier severely limited to 5 pages and 500 monthly visitors; inadequate for most marketing campaigns
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Mailgun and Unbounce actually diverge.

Attributes where Mailgun and Unbounce differ
AttributeMailgunUnbounce
PlatformsWebWeb, API

Identical on both: starting price (Free), pricing model (subscription), free tier (Yes), user rating (Not yet rated), category (Marketing).

What people use each for

The jobs each tool is most often brought in to do.

Mailgun

  • Transactional email delivery and SMTP relaynot Unbounce
  • Email marketing at scale for developers and enterprisesnot Unbounce

Unbounce

  • Marketing agencies and freelancers running multiple client campaignsnot Mailgun
  • SaaS companies optimising landing pages for customer acquisitionnot Mailgun
  • E-commerce businesses testing product landing pages and promotional campaignsnot Mailgun
  • B2B marketers building dedicated pages for specific customer segmentsnot Mailgun
  • Product teams using A/B testing to improve conversion rates without design resourcesnot Mailgun

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Mailgun

  • Free tier limited to 100 emails per day, restricting high-volume use cases
  • Log retention minimal on lower tiers (1 day on Free and Basic plans)
  • Add-on pricing for email validations and extra emails can accumulate quickly for high-traffic users

Unbounce

  • Starter tier severely limited to 5 pages and 500 monthly visitors; inadequate for most marketing campaigns
  • All tiers have monthly visitor caps; campaigns exceeding thresholds require upgrading to higher-priced plans
  • Optimize tier ($249/mo) capped at 50,000 monthly visitors; campaigns beyond this require custom Concierge pricing
  • AI copywriting and advanced optimisation features not explicitly detailed in lower tiers
  • Full customisation beyond templates requires adding custom JavaScript, CSS and HTML
  • FIPS 140-2 or advanced security features not documented as available

Pricing, plan by plan

Mailgun

Free
  • FreeFree
    • 100 emails per day
    • Basic APIs
    • SMTP relay
  • Basic$15/monthly
    • 10,000 emails per month
    • No daily limits
    • Monthly overage options
  • Foundation$35/monthly
    • 50,000 emails per month
    • 1,000 custom domains
    • Email template builder
  • Scale$90/monthly
    • 100,000 emails per month
    • SAML SSO
    • 5,000 email validations

Unbounce

Free
  • Starter$29/month ($22 annually)
    • 5 pages
    • 500 monthly visitors
    • 1 user
  • Build$99/month ($74 annually)
    • Unlimited pages
    • 20,000 monthly visitors
    • 1 user
  • Experiment$149/month ($112 annually)
    • Unlimited pages
    • 30,000 monthly visitors
    • 3 users
  • Optimize$249/month ($187 annually)
    • Unlimited pages
    • 50,000 monthly visitors
    • 5 users

Which should you pick?

Choose Mailgun if

  • You want to start without paying.
Mailgun review

Choose Unbounce if

  • You want to start without paying.
  • You work on Web, API.
Unbounce review

Questions people ask

Is Mailgun or Unbounce better?
Neither clearly leads. Mailgun starts at Free and Unbounce at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mailgun or Unbounce?
Mailgun starts at Free and Unbounce at Free.
Does Mailgun or Unbounce run on more platforms?
Mailgun runs on Web. Unbounce runs on Web, API.
Can I use Mailgun for free?
Both have a free tier, so you can try either at no cost before committing.
What is Mailgun best used for?
Mailgun is most often used for transactional email delivery and smtp relay, email marketing at scale for developers and enterprises. Of those, transactional email delivery and smtp relay and email marketing at scale for developers and enterprises are not what Unbounce is typically brought in for.

Answered from the vendors’ own pages

Mailgun: What happens when I exceed my monthly email quota?

Mailgun allows monthly overage options on paid plans. Extra emails are charged from $1.30 to $1.10 per 1,000 emails depending on plan tier. Enterprise customers negotiate custom rates.

Source
Unbounce: Does Unbounce include A/B testing?

Yes. All paid plans include A/B testing capabilities. The one-click testing tool is designed for marketers without requiring technical or design support.

Source
Mailgun: Can I upgrade from Free to a paid plan and when does billing begin?

Yes, you can upgrade to paid plans anytime. The first month is free on Foundation ($35/month) and Scale ($90/month) plans, with billing starting on month two.

Source
Unbounce: What is Smart Traffic?

Smart Traffic is AI-powered optimisation that automatically routes visitors to their best-matching landing page variant. The feature delivers claimed average conversion improvements of 30%.

Source
Mailgun: What currencies and billing periods does Mailgun support?

Mailgun supports monthly billing in USD, EUR, and GBP. Charges are prorated for mid-month signups. Annual billing options are not explicitly listed on the pricing page.

Source
Unbounce: Is there a free trial?

Yes. Unbounce offers a free 14-day trial with no credit card required.

Source
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