Klaviyo
The smart marketing platform for ecommerce
Substack
Start a newsletter. Build your community.
Klaviyo vs Substack Comparison
Compare Klaviyo and Substack side-by-side — pricing, features, scores, and which one is right for you.
The bottom line
Klaviyo and Substack are both strong contenders in the email marketing space, but they serve different needs. Klaviyo edges ahead with an overall score of 86/100 compared to Substack's 58/100. Substack is easier to get started with (10/10 for ease of use vs 7/10). On pricing, both offer free tiers, so you can try each before committing. Both score equally on value for money (7/10), so the choice comes down to which feature set fits your workflow better.
At a glance
| Klaviyo | Substack | |
|---|---|---|
| Our score | 86/100 | 58/100 |
| Starting price | $20/mo | Free |
| Free tier | Yes | Yes |
| Best for | The smart marketing platform for ecommerce | Start a newsletter. Build your community. |
Pricing comparison
Klaviyo
Free tier available
FreeFree
Email$20/mo
Email + SMS$35/mo
Pricing verified 2026-03-16
Substack
Free tier available
FreeFree
Pricing verified 2026-03-16
Feature comparison
core
| Feature | Klaviyo | Substack |
|---|---|---|
| Email builder | Yes | Basic |
| Automation | Yes | No |
| A/B testing | Yes | No |
| Landing pages | No | Yes |
| Signup forms | Yes | Yes |
advanced
| Feature | Klaviyo | Substack |
|---|---|---|
| SMS marketing | Yes | No |
| Social posting | No | No |
| CRM | Ecommerce CDP | No |
| Predictive analytics | Yes | No |
integrations
| Feature | Klaviyo | Substack |
|---|---|---|
| Shopify | Yes | No |
| WordPress | Yes | No |
| Zapier | Yes | No |
| Salesforce | Yes | No |
Ratings breakdown
Klaviyo
Ease of use7/10
Value for money7/10
Features9/10
Support7/10
Substack
Ease of use10/10
Value for money7/10
Features3/10
Support4/10
Choose Klaviyo if...
- You want a free tier to get started
- You value powerful features over simplicity
- You need enterprise-grade capabilities
Choose Substack if...
- You want a free tier to get started
- You value an intuitive, easy-to-use interface
- You need enterprise-grade capabilities
