Choose Mailjet if you need
- SOC 2 or ISO 27001. We haven't found them on Plunk's website.
At a glance
- Both have a free plan.
- Mailjet's lowest paid plan is Starter at $9 per month for 8,000 emails, as of October 23, 2026.
- Both are available on API.
- Only Plunk lists SMTP.
- Both list GDPR.
- Only Mailjet lists SOC 2 and ISO 27001.
- 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
- SMTP. We haven't found it on Mailjet's website.
Mailjet
Nobody has reviewed Mailjet yet. Its rating shows once it has 3 reviews.
Review Mailjet
Plunk
Nobody has reviewed Plunk yet. Its rating shows once it has 3 reviews.
Review PlunkThe facts
- What it does
- MailjetEmail marketing software that's built for devs and loved by marketers
- PlunkTransactional email, marketing campaigns, and automated workflows, all against one contact list
- Free plan
- MailjetYes
- PlunkYes
- Pricing
- MailjetNot confirmed
- PlunkNot confirmed
- Paid plans from
- Mailjet
What they share
From the platforms and integrations each website lists.
Platforms
Both
- API
Only MailjetNothing else listed
Only Plunk
- SMTP
People who switched
Reviewers who say they used one of these before the other.
No reviewer has said they moved between Mailjet and Plunk yet.
Used either of them?
Your review makes this comparison better for the next person. Review Mailjet or review Plunk.