Klaviyo
Medusa
| Feature | Klaviyo | Medusa |
|---|---|---|
| Pricing | Free / from $20/mo | Free only |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.5 / 5 | 4.4 / 5 |
| Best For | ecommerce, shopify-stores, dtc-brands, online-retailers | developer-teams, custom-commerce, headless-commerce, multi-region-stores |
| Founded | 2012 | 2021 |
| Email Campaigns | ✓ | ✗ |
| Sms Marketing | ✓ | ✗ |
| Flows | ✓ | ✗ |
| Segmentation | ✓ | ✗ |
| Analytics | ✓ | ✗ |
| Ai Content | ✓ | ✗ |
| Headless Api | ✗ | ✓ |
| Multi Region | ✗ | ✓ |
| Plugins | ✗ | ✓ |
| Admin Dashboard | ✗ | ✓ |
| Payment Providers | ✗ | ✓ |
| Fulfillment | ✗ | ✓ |
| Tax Engine | ✗ | ✓ |
✓ Klaviyo Pros
- Deep e-commerce integration
- Powerful segmentation
- Revenue attribution
- Great flows
✗ Klaviyo Cons
- Gets expensive with list size
- Complex for beginners
- SMS extra cost
✓ Medusa Pros
- Fully open-source and developer-friendly
- Headless architecture for any frontend framework
- Built-in multi-region and multi-currency support
- Modular design allows replacing any component
✗ Medusa Cons
- Requires development resources to set up
- Newer platform with smaller ecosystem
- No visual store builder for non-developers
The Verdict
Klaviyo is built for ecommerce and shopify stores, with a focus on email-campaigns and sms-marketing. Medusa targets developer teams and custom commerce and leads with headless-api and multi-region.
Medusa uses custom enterprise pricing, while Klaviyo starts at $20/mo — a tangible advantage for teams with a fixed budget.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Feature-wise, Medusa offers broader built-in capabilities (7 features vs 6), while Klaviyo takes a more focused approach — which can mean a simpler, faster onboarding experience.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.