Klaviyo vs Postmark
Both sit in email marketing. Here is how they differ on the things you can actually check.
On price: Postmark starts $5 a month cheaper than Klaviyo ($15 against $20, 25% less) on its Basic tier. Where a price could not be read from the vendor's page it is marked indicative below.
Klaviyo
klaviyo.com
Marketing automation that plugs directly into store data — browse and purchase behaviour drive segments, flows and predictive audiences. Heavily used on Shopify.
Postmark
postmarkapp.com
Focused purely on transactional sending — receipts, password resets, notifications — with a reputation for fast delivery and detailed per-message logs. Part of ActiveCampaign.
| Klaviyo | Postmark | |
|---|---|---|
| Entry price | $20/mo | $15/mo |
| Entry plan | — | Basic |
| Paid annually | — | — |
| Price checked | not verified | 21 Sept 2026 |
| Pricing model | Free plan | Free trial |
| Free plan | Yes | No |
| Category | Email Marketing | Email Marketing |
| Around since | 2012 | 2010 |
1 of these 2 prices were read from the vendor's own pricing page, most recently on 21 Sept 2026; the rest are indicative. Entry tier only — vendors change pricing without notice.
Klaviyo vs Postmark, answered
- Is Klaviyo cheaper than Postmark?
- No — Postmark is the cheaper entry point, at $15 a month against Klaviyo's $20, 25% less.
- Do Klaviyo or Postmark have a free plan?
- Klaviyo publishes an ongoing free plan; Postmark does not.
- What is the difference between Klaviyo and Postmark?
- Klaviyo: Marketing automation that plugs directly into store data — browse and purchase behaviour drive segments, flows and predictive audiences. Heavily used on Shopify. Postmark: Focused purely on transactional sending — receipts, password resets, notifications — with a reputation for fast delivery and detailed per-message logs. Part of ActiveCampaign.
