Klaviyo vs Sender
Both are in Email marketing. Here is how their plans, prices and features compare, taken from each vendor's own site.
The main differences
- Sender's cheapest paid plan is $9/mo, against $20/mo for Klaviyo.
- Fees: Klaviyo states none; Sender Custom pricing.
| Klaviyo | Sender | |
|---|---|---|
| Starting price | Free plan · from $20/mo | Free plan · from $9/mo |
| Free plan | Yes | Yes |
| Free trial | Not stated by the vendor | Not stated by the vendor |
| Plans | Free ($0); Email ($20/mo); Marketing ($90/mo) | Free Forever ($0); Standard ($9/mo annual, $108/yr); Professional ($15/mo annual, $180/yr); Enterprise () |
| Fees | Not stated | Custom pricing |
| Best for | Ecommerce | Not stated |
| Key features | Email campaigns, signup forms and segmentation; 350+ integrations (Email and up); A/B testing (Email and up); Generative AI for subject lines, content, images and segments | Email newsletters and automation; Landing pages, signup forms and popups; Transactional emails; SMS messaging |
| Checked on | 2026-10-01 | 2026-10-03 |
Prices change; confirm on the vendor's site before you buy. Full details and sources are on each tool's page.
Klaviyo
- Free plan with 500 emails a month
- 350+ integrations
- A broad ecommerce toolset on the Marketing plan
Trade-offs
- Priced by active profiles, so cost rises as the list grows
- Email support on Free lasts only 60 days
- A/B testing is not on the Free plan
Sender
- Free forever plan: up to 2,500 subscribers and 15,000 emails a month
- No contracts, obligations or setup fees, according to the page
- 30% off the first year for first-time users
Trade-offs
- The free plan carries Sender branding and 1 seat
- Standard allows 6,000 emails a month for up to 500 subscribers
- SMS costs extra on Standard (about $0.015 in the US)
- The 30% first-year discount is for first-time users only