Comparison · updated July 2026
Volanea vs Plunk.
These two are philosophical siblings: one platform for transactional and marketing email, unlimited contacts, a free monthly tier. The pricing shapes differ now — Volanea's flat tiers versus Plunk's pure per-email meter — and the details are what this page is for.
The short version
Plunk is open-source and self-hostable, has been around longer, and prices purely per email — a flat $0.001, no base fee, no tiers. 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 shape differs — Volanea sells flat tiers (Free 1,000, Starter $5/7,500, Growth $20/50,000), Plunk meters every email. Which is cheaper swings both ways: Volanea's Growth sends 50,000 for $20 where Plunk would bill about $50, but Plunk wins in the 8,000–20,000 band where a metered bill beats the flat $20 tier.
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 |
| Pricing model | Flat tiers — Free, $5, $20/mo | Metered — $0.001/email, no base fee |
The math
What a month actually costs.
| You send | Volanea | Plunk |
|---|---|---|
| 1,000 | $0 (free tier) | $0 (free tier) |
| 10,000 | $20 (Growth) | ~$10 |
| 50,000 | $20 (Growth) | ~$50 |
| 100,000 | Contact us (Enterprise) | ~$100 |
The pricing shapes differ now: Volanea sells flat tiers, Plunk meters every email at $0.001. Volanea's Growth plan sends up to 50,000 for a flat $20, where Plunk would bill about $50 — so Volanea wins when you fill a tier. In the 8,000–20,000 range Plunk's metered bill (under $20) beats Volanea's $20 Growth tier, and below 7,500 Volanea's $5 Starter undercuts Plunk. Pick on features and hosting; the price gap swings both ways.
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.
- You reliably fill a tier — 50,000 for a flat $20 beats Plunk's ~$50 metered.
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.
- Your volume sits in the 8,000–20,000/month range, where pure per-email pricing beats a flat $20 tier.
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, 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. The pricing shape differs too — Volanea sells flat tiers, Plunk meters per email.
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?
It depends on volume now that Volanea sells flat tiers. Below 7,500 emails a month, Volanea's $5 Starter beats Plunk's ~$7.50 metered. Around 8,000–20,000, Plunk's $0.001-per-email is cheaper than Volanea's $20 Growth tier. At 50,000, Volanea's flat $20 beats Plunk's ~$50. Both give 1,000 free every month.