Klaviyo vs Resend: Complete Comparison (2026)
An in-depth comparison of Klaviyo and Resend 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.
Resend
6.7/10
Developer-focused email platform with an API for transactional email and a Broadcasts feature for marketing newsletters to segmented contact lists.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 6.9/10 | 6.7/10 |
| Scalability | 8/10 | 7/10 |
| Ease of Use | 6/10 | 7/10 |
| Customization | 8/10 | 7/10 |
| Security | 7/10 | 7/10 |
| Support | 5/10 | 5/10 |
| Cost | 4/10 | 7/10 |
| Integration | 9/10 | 7/10 |
| Analytics | 9/10 | 5/10 |
| Pricing | ||
| Free plan | Yes | Yes |
| Cheapest paid plan | $20/mo Email | $20/mo Transactional Pro |
| Estimated cost for 10 users | Free Free | Free Marketing Free |
| Features | ||
| SMS Marketing | ||
| Email Marketing | ||
| Segmentation | ||
| E-commerce Features | Not listed | |
| Landing Pages | Not listed | |
| Webinars | Not listed | |
Klaviyo vs Resend cost by team size
Klaviyo and Resend cost the same at every team size we checked.
| Team size | Klaviyo | Resend |
|---|---|---|
| 1 user | FreeFree | FreeMarketing Free |
| 5 users | FreeFree | FreeMarketing Free |
| 10 users | FreeFree | FreeMarketing Free |
| 25 users | FreeFree | FreeMarketing Free |
| 50 users | FreeFree | FreeMarketing Free |
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
- Higher Analytics score (9/10 vs 5/10)
- Higher Integration score (9/10 vs 7/10)
- Better fit for e-commerce (10/10 vs 3/10)
- Better fit for marketing teams (9/10 vs 5/10)
- Includes SMS Marketing, which Resend lacks
Why choose Resend
- Higher Cost score (7/10 vs 4/10)
- Higher Ease of Use score (7/10 vs 6/10)
- Better fit for freelancers (7/10 vs 3/10)
- Better fit for startups (9/10 vs 6/10)
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.
Resend
Pros
- The free tiers include 3,000 transactional emails a month and 1,000 marketing contacts, which is enough for early products.
- Marketing plans are priced by contact count with no send limit, so frequent newsletters do not add cost.
- React Email templates and first-party SDKs for Node.js, Python, Ruby, PHP and Go make it quick for developers to integrate.
- Resend holds a SOC 2 Type II report, and its GDPR DPA with Standard Contractual Clauses is signed automatically at sign-up.
- The Broadcasts no-code editor lets non-developers on the team send segmented, scheduled campaigns.
Cons
- Reviewers describe its marketing automation and segmentation as lighter than Klaviyo or Customer.io.
- Its documentation does not mention A/B testing, and it offers no landing pages, SMS or e-commerce features.
- Trustpilot reviewers report sudden account suspensions and slow support replies.
- Data is stored only in the US, and Resend offers no HIPAA BAA or ISO 27001 certification.
- Free, Pro and Scale plans keep data for only 30 days.
Not sold on either?
Frequently Asked Questions
Klaviyo scores higher on our Marketing criteria: 6.9/10 against 6.7/10 for Resend. The largest gap is in Analytics: 9/10 for Klaviyo and 5/10 for Resend.
Both are free for 10 users.
Yes, both Klaviyo and Resend have a free plan.
Klaviyo is the better fit for e-commerce: we rate it 10/10 for them, against 3/10 for Resend.
Klaviyo has SMS Marketing, which Resend lacks.
