Comparison · updated July 2026
Volanea vs Plunk.
These two are philosophical siblings: one platform for transactional and marketing email, unlimited contacts, a fair per-email price. The differences are in the details — and the details are what this page is for.
The short version
Plunk is open-source and self-hostable, has been around longer, and charges no base fee — pure $0.001 per email. If you want to run your own instance or open source is a requirement, choose Plunk.
Volanea is a hosted platform with a deeper feature set in places: A/B subject experiments, template versioning with rollback, dynamic segments with live preview, per-category spending caps, and a built-in sender-reputation guard that throttles before your domain gets burned. Pricing is nearly identical — Volanea adds a $1/month base fee on the paid plan, Plunk doesn't.
Plunk is an open-source email platform combining transactional email, campaigns, and automations, priced at a flat $0.001 per email.
Side by side
At a glance.
| Volanea | Plunk | |
|---|---|---|
| Transactional API | Yes | Yes |
| Marketing campaigns | Yes — A/B subject tests, resend to non-openers | Yes |
| Automation workflows | Yes — delays, branches, event triggers | Yes (automations) |
| Dynamic segments | Yes — condition trees, live preview | Lighter |
| Contact limits | None | None |
| Free tier | 1,000 emails/mo | 1,000 emails/mo |
| Template versioning & rollback | Yes | No |
| Sender-reputation guard | Yes — auto-throttle on bounce/complaint spikes | Abuse checks |
| Spending caps | Yes — overall and per-category | No |
| Open source / self-host | No — hosted only | Yes |
| Base fee on paid plan | $1/month | None |
The math
What a month actually costs.
| You send | Volanea | Plunk |
|---|---|---|
| 1,000 | $0 (free tier) | $0 (free tier) |
| 10,000 | $10 | ~$10 |
| 50,000 | $50 | ~$50 |
| 100,000 | $100 | ~$100 |
Pricing is essentially the same — both charge $0.001 per email. Volanea adds a $1/month base on the paid plan (which is also what makes 10,000 emails land on exactly $10); Plunk bills purely per email. At any real volume the difference is noise. Pick on features and hosting, not price.
Choose Volanea if
- You want a hosted platform with someone else carrying the pager — queues, deliverability, backups.
- A/B experiments, template rollback, or segment previews are part of your workflow.
- You want hard spending caps and a reputation guard between you and a bad send.
Choose Plunk if
- Open source is a requirement, or you want to self-host on your own infrastructure.
- You want the longer track record and community around the project.
- Even a $1/month base fee offends you — fair enough.
No hard feelings — the right tool is the one that fits. This page stays honest so you can trust the rest of it.
Questions
Asked before switching.
Is Volanea just a Plunk clone?
They share a philosophy — one contact graph for transactional and marketing email, per-email pricing, no contact limits — and we think Plunk got a lot right. Volanea is an independent product with its own engine: A/B campaign experiments, template versioning, dynamic segments with live preview, per-category caps, and a sender-reputation guard are Volanea-specific.
Can I self-host Volanea like Plunk?
No — Volanea is a hosted platform only. If self-hosting is a hard requirement, Plunk is the right choice of the two.
Which is cheaper, Volanea or Plunk?
They're effectively identical: $0.001 per email, 1,000 free every month. Volanea's paid plan adds a $1/month base fee, so Plunk is marginally cheaper on paper. At 10,000 emails a month both land at about $10.