The Klaviyo alternative
priced per email
Klaviyo is an e-commerce marketing platform with SMS, predictive analytics and native store integrations, priced by contact count. Plunk covers the email side, from order confirmations to abandoned-cart flows, and only charges for emails sent.
How Plunk differs from Klaviyo
October usage
- 48,210 contacts
- Free
- 10,000 emails sent
- $10.00
Pay for emails, not contacts
With 10,000 active profiles, Klaviyo’s email plan costs around $150 a month. Plunk stores contacts at no cost and charges only for the emails you send.
Password reset
To ana@acme.com · 2m ago
Receipt #3980
To tom@acme.com · 9m ago
Order emails from your backend
Send order confirmations and shipping notifications from your store with a single API call.
Trigger
Contact signs up
Send email
Welcome to Acme
Delay
Wait 3 days
Abandoned cart and post-purchase flows
Build automated sequences triggered by events from Shopify, WooCommerce or your own store, sent through webhooks or the API.
Which one is right for you?
Choose Plunk if
- You want e-commerce email without contact-based pricing
- You are comfortable connecting your store through an API
- You want open source, with the option to self-host
Choose Klaviyo if
- You want a native Shopify app with pre-built flows
- You send SMS marketing alongside email
- You rely on predictive analytics and AI product recommendations
Feature by feature
| Feature | Plunk | Klaviyo |
|---|---|---|
| Pricing model | Pay-as-you-go | Contact-based tiers |
| Open source | ||
| Self-hostable | ||
| Transactional emails | ||
| Marketing campaigns | ||
| Workflow automation | ||
| E-commerce integration | API-based | Native deep |
| SMS marketing | ||
| Predictive analytics |
Frequently asked questions
Run your store's email without paying per contact.
Start on the free plan with 1,000 emails a month, no credit card needed. When you need more, every email is $0.001, with unlimited contacts and every feature included.