Is Convert or Mailgun better?

Neither clearly leads. Convert starts at Free and Mailgun at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Convert or Mailgun?

Convert starts at Free and Mailgun at Free.

Does Convert or Mailgun run on more platforms?

Both run on Web, so platform support will not decide this one for you.

Can I use Convert for free?

Both have a free tier, so you can try either at no cost before committing.

What is Convert best used for?

Convert is most often used for a/b and multivariate testing for conversion optimization, full-stack experimentation on web and mobile, sequential testing and statistical confidence tracking. Of those, a/b and multivariate testing for conversion optimization and full-stack experimentation on web and mobile are not what Mailgun is typically brought in for.

What can Convert do that Mailgun cannot?

Convert covers A/B testing, Multivariate testing, Analytics, API access.

Marketing · head to head

Convert vs Mailgun

Convert

Marketing

A/B testing platform for enterprises

From: Free
Rated: -

Full review Website

Mailgun

Marketing

Email delivery built for developers

From: Free
Rated: -

Full review Website

The short version

Each has a real cost: Convert pricing is driven by monthly tested users, starting at $399 per month for 100,000 monthly tested users on Growth and $599 on Pro; Mailgun free tier limited to 100 emails per day, restricting high-volume use cases
Prices and features above were last checked on 2 September 2026.

Where they differ

Only the attributes on which Convert and Mailgun actually diverge.

Attributes where Convert and Mailgun differ
Attribute	Convert	Mailgun
Founded	2012	Unknown

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

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Convert

A/B testing
Multivariate testing
Analytics
API access
Google Analytics
SSL encryption
Cloud deployment
Web support

Only in Mailgun

Nothing recorded that Convert does not also cover.

What people use each for

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

Convert

A/B and multivariate testing for conversion optimizationnot Mailgun
Full-stack experimentation on web and mobilenot Mailgun
Sequential testing and statistical confidence trackingnot Mailgun

Mailgun

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

Where each one falls short

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

Convert

Pricing is driven by monthly tested users, starting at $399 per month for 100,000 monthly tested users on Growth and $599 on Pro
Single Sign-On requires the Pro plan at $599 per month
Multivariate testing, multi-page testing, full stack and feature flags, sequential testing and raw test data export are all withheld from the Growth plan
Phone support, change history and guided onboarding require Pro
The advertised $299 and $420 per month rates require paying the full year up front at $3,588 or $5,040
The Enterprise plan is price on request, is only available as an annual plan, and its data segregation feature carries additional costs
Listed prices exclude VAT, GST and other taxes, which are added at checkout
Above 5 million monthly tested users there is no published rate

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

Pricing, plan by plan

Convert

Free

Growth$399/month
Pro$599/month
Enterprise$undefined/mo

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

Which should you pick?

Choose Convert if

You need a/b testing.
You want to start without paying.
You also want multivariate testing.

Convert review

Choose Mailgun if

You want to start without paying.

Mailgun review

Questions people ask

Is Convert or Mailgun better?: Neither clearly leads. Convert starts at Free and Mailgun at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Convert or Mailgun?: Convert starts at Free and Mailgun at Free.
Does Convert or Mailgun run on more platforms?: Both run on Web, so platform support will not decide this one for you.
Can I use Convert for free?: Both have a free tier, so you can try either at no cost before committing.
What is Convert best used for?: Convert is most often used for a/b and multivariate testing for conversion optimization, full-stack experimentation on web and mobile, sequential testing and statistical confidence tracking. Of those, a/b and multivariate testing for conversion optimization and full-stack experimentation on web and mobile are not what Mailgun is typically brought in for.
What can Convert do that Mailgun cannot?: Convert covers A/B testing, Multivariate testing, Analytics, API access.

Answered from the vendors’ own pages

Convert: What is the starting price for Convert?

The Growth plan starts at $399/month (or $299/month billed annually for 25% savings) with 100K monthly tested users, 5 projects, and 5 active experiences per project.

Source

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

Convert: What is the difference between Growth and Pro plans?

Both cap at 100K tested users/month, but Pro ($599/month or $420/month annual) adds 30 active projects (vs 5), unlimited experiences per project (vs 5), unlimited domains (vs 10), multivariate testing, full-stack testing, sequential testing, and phone 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

Convert: How much does the Enterprise plan cost?

Enterprise pricing is available 'on request.' It supports 1M+ monthly tested users (12M+ annually), unlimited projects, experiences, and domains, plus dedicated account manager and custom terms.

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

Convert: What is the cost to exceed my monthly tested user limit?

Growth overages cost $399 per 100K additional users. Pro/Enterprise overages cost $699 per 250K additional users. Customers can also upgrade mid-cycle at any time.

Source

Convert vs Mailgun

Convert

Mailgun

The short version

Where they differ

What each one covers

Only in Convert

Only in Mailgun

What people use each for

Convert

Mailgun

Where each one falls short

Convert

Mailgun

Pricing, plan by plan

Convert

Mailgun

Which should you pick?

Choose Convert if

Choose Mailgun if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Convert

More on Mailgun

Keep looking

Other head to heads