Klaviyo vs SendX: Complete Comparison (2026)
An in-depth comparison of Klaviyo and SendX 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.
SendX
6.2/10
SendX is an email marketing platform for small and growing businesses. It offers campaigns, automation, landing pages, and deliverability tools, priced by contact count.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 6.9/10 | 6.2/10 |
| Integration | 9/10 | 6/10 |
| Analytics | 9/10 | 5/10 |
| Cost | 4/10 | 8/10 |
| Customization | 8/10 | 5/10 |
| Ease of Use | 6/10 | 7/10 |
| Scalability | 8/10 | 5/10 |
| Security | 7/10 | 5/10 |
| Support | 5/10 | 7/10 |
| Pricing | ||
| Free plan | Yes | No |
| Cheapest paid plan | $20/mo Email | $10/mo Core |
| Estimated cost for 10 users | Free Free | $10/mo Core |
| Features | ||
| E-commerce Features | ||
| Email Marketing | ||
| Landing Pages | ||
| Segmentation | ||
| A/B Testing | Not listed | |
| SMS Marketing | Not listed | |
| Webinars | Not listed | |
Klaviyo vs SendX cost by team size
Klaviyo costs less at every team size we checked.
| Team size | Klaviyo | SendX |
|---|---|---|
| 1 user | FreeFree | $10/moCore |
| 5 users | FreeFree | $10/moCore |
| 10 users | FreeFree | $10/moCore |
| 25 users | FreeFree | $10/moCore |
| 50 users | FreeFree | $10/moCore |
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
- Has a free plan (SendX does not)
- Lower estimated cost for 10 users: Free vs $10/mo
- Higher Analytics score (9/10 vs 5/10)
- Higher Integration score (9/10 vs 6/10)
- Better fit for enterprise (8/10 vs 4/10)
Why choose SendX
- Higher Cost score (8/10 vs 4/10)
- Higher Support score (7/10 vs 5/10)
- Better fit for freelancers (6/10 vs 3/10)
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.
SendX
Pros
- Every plan includes unlimited marketing sends, users, and domains, so the bill depends only on contact count.
- Core starts at $10 a month for 1,000 contacts, and annual billing takes 25 percent off.
- Deliverability tooling is broad, with inbox tests, dedicated IPs, list cleaning, warmup, and an AI advisor.
- A/B testing, segmentation, landing pages, and workflows are included on the entry plan.
- Reviewers on G2 and Capterra praise the support team, and every plan includes 24/7 chat and ticket support.
Cons
- SMS is not generally available: bulk SMS is in private beta and SMS in workflows is in beta.
- Reviewers cite limited template variety and basic reporting.
- Some users report slow sends, including one 10,000-contact campaign that took 24 hours.
- Some reviewers say they had trouble cancelling their subscription or deleting their account.
- White label and multi-tenant features, which agencies need, are only on the custom-priced Enterprise plan.
Not sold on either?
Frequently Asked Questions
Klaviyo scores higher on our Marketing criteria: 6.9/10 against 6.2/10 for SendX. The largest gap is in Analytics: 9/10 for Klaviyo and 5/10 for SendX.
Klaviyo costs less for 10 users: free on its Free plan, against about $10/mo on its Core plan for SendX, billed monthly.
Klaviyo has a free plan; SendX does not list one.
Klaviyo is the better fit for enterprise: we rate it 8/10 for them, against 4/10 for SendX.
