Choose Mailgun if you need
- SOC 2, ISO 27001, HIPAA or SSO. We haven't found them on Plunk's website.
At a glance
- Both have a free plan.
- Mailgun's lowest paid plan is Basic at $15 per month for 10,000 emails, as of October 20, 2026.
- Both are available on API and SMTP.
- Both list GDPR.
- Only Mailgun lists SOC 2, ISO 27001, HIPAA and SSO.
- Both have a public API.
From each tool's own website, checked on the dates below, and from published reviews.
Which to choose
From the facts checked for both tools, not from opinion. A fact we haven't confirmed for one of them is never counted.
Choose Plunk if you need
No checked fact sets Plunk apart from Mailgun yet.
Mailgun
Nobody has reviewed Mailgun yet. Its rating shows once it has 3 reviews.
Review Mailgun
Plunk
Nobody has reviewed Plunk yet. Its rating shows once it has 3 reviews.
Review PlunkThe facts
- What it does
- MailgunTransactional email delivery service and API for developers
- PlunkTransactional email, marketing campaigns, and automated workflows, all against one contact list
- Free plan
- MailgunYes
- PlunkYes
- Pricing
- MailgunNot confirmed
- PlunkNot confirmed
- Paid plans from
- Mailgun
What they share
From the platforms and integrations each website lists.
Platforms
Both
- API
- SMTP
Only MailgunNothing else listed
Only PlunkNothing else listed
People who switched
Reviewers who say they used one of these before the other.
No reviewer has said they moved between Mailgun and Plunk yet.
Used either of them?
Your review makes this comparison better for the next person. Review Mailgun or review Plunk.