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Marketing · head to head

Mailgun vs Wufoo

Mailgun logo

Mailgun

Marketing

Email delivery built for developers

From
Free
Free plan
Yes
Full reviewWebsite
Wufoo logo

Wufoo

Surveys

Build online forms in minutes

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Mailgun free tier limited to 100 emails per day, restricting high-volume use cases; Wufoo free plan caps at 5 forms and 100 entries
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Mailgun and Wufoo actually diverge.

Attributes where Mailgun and Wufoo differ
AttributeMailgunWufoo
Pricing modelsubscriptionfreemium
CategoryMarketingSurveys

Identical on both: starting price (Free), free tier (Yes), platforms (Web), user rating (Not yet rated).

What people use each for

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

Mailgun

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

Wufoo

  • Event registration and attendee managementnot Mailgun
  • Lead capture and sales qualificationnot Mailgun
  • Customer feedback and survey collectionnot Mailgun
  • Online order processing with payment collectionnot Mailgun
  • Employee onboarding and registration workflowsnot 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

Wufoo

  • Free plan caps at 5 forms and 100 entries
  • Starter plan ($16.25/mo) still limits to 10 forms and 1,000 entries per month
  • Accepting payments requires the Professional tier ($33.25/mo) or higher; Free and Starter tiers cannot take payments at all

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

Wufoo

Free

No published plan breakdown. See the Wufoo review.

Which should you pick?

Choose Mailgun if

  • You want to start without paying.
Mailgun review

Choose Wufoo if

  • You want to start without paying.
Wufoo review

Questions people ask

Is Mailgun or Wufoo better?
Neither clearly leads. Mailgun starts at Free and Wufoo at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mailgun or Wufoo?
Mailgun starts at Free and Wufoo at Free.
Does Mailgun or Wufoo run on more platforms?
Both run on Web, so platform support will not decide this one for you.
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 Wufoo 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
Wufoo: What happens if I exceed my monthly entry limit?

On PAID accounts, if you exceed the number of entries allowed for the month, a fee of $0.05 USD per entry over the limit will be charged to your account at the end of your billing period.

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
Wufoo: Are there file upload restrictions?

Maximum individual file size is 25MB per field and 100MB per form (on higher-tier plans). Storage is only available on paid accounts.

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
Wufoo: What happens to free accounts that exceed limits?

On FREE accounts, forms will be deactivated once they have exceeded the maximum number of entries allowed for a given month.

Source
Wufoo: How many fields can I add to a form?

Approximately 100 fields max, though this depends on field type (paragraph fields are limited to 10 per form).

Source
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