Klaviyo vs SendGrid: Complete Comparison (2026)
An in-depth comparison of Klaviyo and SendGrid to help you choose the right tool for your business.
Last updated: November 2026
Klaviyo
6.9/10
Klaviyo is an email, SMS and customer data platform for ecommerce brands, priced by active profiles and built around store data and automated flows.
SendGrid
6.2/10
Twilio-owned email platform that pairs a developer-focused transactional Email API with a Marketing Campaigns tool for newsletters and automated email sends.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 6.9/10 | 6.2/10 |
| Scalability | 8/10 | 9/10 |
| Ease of Use | 6/10 | 5/10 |
| Customization | 8/10 | 6/10 |
| Security | 7/10 | 7/10 |
| Support | 5/10 | 3/10 |
| Cost | 4/10 | 6/10 |
| Integration | 9/10 | 8/10 |
| Analytics | 9/10 | 5/10 |
| Pricing | ||
| Free plan | Yes | Yes |
| Cheapest paid plan | $20/mo Email | $15/mo Marketing Campaigns Basic |
| Estimated cost for 10 users | Free Free | $60/mo Marketing Campaigns Advanced |
| Features | ||
| Email Marketing | ||
| Segmentation | ||
| A/B Testing | Not listed | |
| E-commerce Features | Not listed | |
| Landing Pages | Not listed | |
| SMS Marketing | Not listed | |
Klaviyo vs SendGrid cost by team size
Klaviyo costs less at every team size we checked.
| Team size | Klaviyo | SendGrid |
|---|---|---|
| 1 user | FreeFree | $15/moMarketing Campaigns Basic |
| 5 users | FreeFree | $60/moMarketing Campaigns Advanced |
| 10 users | FreeFree | $60/moMarketing Campaigns Advanced |
| 25 users | FreeFree | $60/moMarketing Campaigns Advanced |
| 50 users | FreeFree | $60/moMarketing Campaigns Advanced |
The plan that fits each team size, billed monthly, before add-ons and usage charges. Each cost opens that tool's pricing calculator for the team size.
Which One Should You Choose?
Why choose Klaviyo
- Lower estimated cost for 10 users: Free vs $60/mo
- Higher Analytics score (9/10 vs 5/10)
- Higher Customization score (8/10 vs 6/10)
- Better fit for e-commerce (10/10 vs 5/10)
- Better fit for marketing teams (9/10 vs 5/10)
Why choose SendGrid
- Higher Cost score (6/10 vs 4/10)
- Higher Scalability score (9/10 vs 8/10)
Pros & Cons
Klaviyo
Pros
- Deep native integration with Shopify and other stores lets marketers segment on real purchase and browsing data.
- A free plan with 250 profiles and a 20 USD entry plan make it cheap to start.
- Since July 2026, SMS uses dollar-based plans with over 70 tiers, so gaps between plans are smaller and larger plans get lower per-message rates.
- A broad product suite covering reviews, helpdesk, personalization and AI agents can replace several separate tools.
Cons
- Billing by active profiles and uneven tier steps cause cost jumps, for example from 150 USD at 10,000 profiles to 350 USD at 15,000 on the Email plan.
- Many features, such as Reviews, Helpdesk, Personalization and Composer, are separately priced add-ons that raise the total bill.
- Free accounts get email support only for the first 60 days, and reviewers on G2 and Trustpilot report slow or hard-to-reach support.
- New users report a learning curve with segments, event triggers and flow logic.
SendGrid
Pros
- Scales from 50,000 to 2.5 million emails a month on published Pro tiers, with Premier above that.
- Reviewers value its reliability and uptime for transactional and marketing email.
- Deliverability tooling covers domain authentication with SPF, DKIM and DMARC, plus dedicated IPs on higher tiers.
- The drag-and-drop editor and signup forms with double opt-in let marketers build campaigns without code.
- Reviewers mention integrations with WordPress, Shopify and Salesforce, alongside webhooks and a REST API.
Cons
- Support is a frequent complaint, with reviewers describing slow email-only responses since the Twilio acquisition.
- Reviewers call Marketing Campaigns automation basic, with no advanced conditional flows.
- The permanent free plan has been replaced by a 60-day trial capped at 100 emails a day.
- Email API and Marketing Campaigns are billed separately, so using both raises costs.
- Reviewers report sudden account suspensions and say refunds are hard to get.
Not sold on either?
Frequently Asked Questions
Klaviyo scores higher on our Marketing criteria: 6.9/10 against 6.2/10 for SendGrid. The largest gap is in Analytics: 9/10 for Klaviyo and 5/10 for SendGrid.
Klaviyo costs less for 10 users: free on its Free plan, against about $60/mo on its Marketing Campaigns Advanced plan for SendGrid, billed monthly.
Yes, both Klaviyo and SendGrid have a free plan.
Klaviyo is the better fit for e-commerce: we rate it 10/10 for them, against 5/10 for SendGrid.
