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Marketing · head to head

Mailgun vs Zonka Feedback

Mailgun logo

Mailgun

Marketing

Email delivery built for developers

From
Free
Free plan
Yes
Full reviewWebsite
Zonka Feedback logo

Zonka Feedback

Surveys

Multi-channel CX feedback platform with quoted pricing based on response volume and AI data credits

From
On request
Free plan
No
Full reviewWebsite

The short version

  • Only Mailgun has a free tier, so it costs nothing to try first.
  • Each has a real cost: Mailgun free tier limited to 100 emails per day, restricting high-volume use cases; Zonka Feedback no pricing tier is published for either the core product or the AI add-on, so total cost is unknown until a sales quote is obtained.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Mailgun and Zonka Feedback actually diverge.

Attributes where Mailgun and Zonka Feedback differ
AttributeMailgunZonka Feedback
Starting priceFreeOn request
Pricing modelsubscriptionquote
Free tierYesNo
PlatformsWebWeb, iOS, Android
CategoryMarketingSurveys

Identical on both: user rating (Not yet rated).

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 Mailgun

Nothing recorded that Zonka Feedback does not also cover.

Only in Zonka Feedback

  • Multi-channel surveys
  • Kiosk and offline mode
  • Real-time dashboards
  • Case management
  • AI Feedback Intelligence
  • Reputation management

What people use each for

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

Mailgun

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

Zonka Feedback

  • A multi-location retailer or clinic wanting kiosk-based feedback capture alongside digital surveysnot Mailgun
  • A CX team that needs closed-loop case management to assign and track resolution of negative feedbacknot Mailgun
  • A hospitality operator wanting reputation management alongside direct feedback collectionnot Mailgun
  • A company with high volumes of open-ended feedback wanting AI theme extraction rather than manual taggingnot 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

Zonka Feedback

  • No pricing tier is published for either the core product or the AI add-on, so total cost is unknown until a sales quote is obtained.
  • The AI Feedback Intelligence product is priced separately on data credits, meaning a buyer who wants both feedback collection and AI analysis is negotiating two line items, not one.
  • Third-party pricing estimates in the low hundreds to near a thousand dollars a month vary enough that budgeting from public sources alone is unreliable.
  • Kiosk hardware and offline capture are a strength for physical locations but add limited value to a purely digital-only business, which pays for a capability it does not use.
  • It is a smaller vendor than Medallia or Qualtrics, so enterprise buyers evaluating analyst-recognised platforms may not shortlist it despite comparable core features.

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

Zonka Feedback

On request
  • Feedback Management$undefined/month
    • Priced by response volume
    • Multi-channel surveys and case management
    • 14-day free trial
  • AI Feedback Intelligence$undefined/month
    • Priced by AI data credits, separate from Feedback Management
    • Theme extraction, sentiment and impact analysis

Which should you pick?

Choose Mailgun if

  • You want to start without paying.
Mailgun review

Choose Zonka Feedback if

  • You need multi-channel surveys.
  • You work on Web, iOS, Android.
  • You also want kiosk and offline mode.
Zonka Feedback review

Questions people ask

Is Mailgun or Zonka Feedback better?
Neither clearly leads. Mailgun starts at Free and Zonka Feedback at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mailgun or Zonka Feedback?
Mailgun has a free tier; the other does not. Paid plans start at Free for Mailgun and On request for Zonka Feedback.
Does Mailgun or Zonka Feedback run on more platforms?
Mailgun runs on Web. Zonka Feedback runs on Web, iOS, Android.
Can I use Mailgun for free?
Yes. Mailgun has a free tier, so you can try it without paying. Zonka Feedback starts at On request.
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 Zonka Feedback is typically brought in for.
What can Mailgun do that Zonka Feedback cannot?
Zonka Feedback covers Multi-channel surveys, Kiosk and offline mode, Real-time dashboards, Case management.

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
Zonka Feedback: Is pricing published anywhere?

No. Zonka quotes pricing based on feedback volume for the core product and data credits for AI Feedback Intelligence; nothing is listed as a fixed price.

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
Zonka Feedback: Is AI Feedback Intelligence included in the base plan?

No, it is sold and priced separately from core feedback management.

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
Zonka Feedback: Does it support offline feedback collection?

Yes, kiosk and tablet devices can capture feedback without a live network connection, which is a differentiator against purely web-based survey tools.

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