Omnisend vs Klaviyo: Which Is Better in 2026?
Compare Omnisend vs Klaviyo for ecommerce email and SMS marketing. We break down pricing, automation, features, and which platform delivers better store ROI.
Top Picks from This Article
If you run an ecommerce store, you have probably narrowed your email marketing choice down to two platforms: Omnisend and Klaviyo. Both are purpose-built for ecommerce, both offer email and SMS, and both integrate deeply with Shopify, WooCommerce, and BigCommerce.
But they serve different segments. Here is how they compare.
Quick Comparison
| Feature | Omnisend | Klaviyo |
|---|---|---|
| Starting price (500 contacts) | $16/mo | $20/mo |
| Free plan | 250 contacts | 250 contacts |
| Email + SMS | Yes (built-in) | Yes (built-in) |
| Push notifications | Yes | No |
| Predictive analytics | No | Yes (CLV, churn risk) |
| Pre-built automations | Yes | Yes |
| Shopify integration depth | Good | Best-in-class |
| A/B testing | Subject line only (Standard) | Full multivariate |
| Product picker | Yes | Yes |
Pricing Comparison
This is where it gets real. Both platforms price by contact count, and the gap widens at scale.
| Contacts | Omnisend Standard | Klaviyo Email |
|---|---|---|
| 500 | $16/mo | $20/mo |
| 1,000 | $20/mo | $30/mo |
| 5,000 | $65/mo | $100/mo |
| 10,000 | $115/mo | $150/mo |
| 25,000 | $209/mo | $375/mo |
| 50,000 | $330/mo | $720/mo |
At 50,000 contacts, Klaviyo costs more than double Omnisend. That difference funds a lot of other marketing spend.
Features Deep Dive
Automation
Both platforms ship pre-built ecommerce automation flows: welcome series, abandoned cart, browse abandonment, post-purchase, win-back.
Klaviyo’s edge: Conditional splits based on predictive data. You can branch an automation based on predicted CLV or churn risk — something Omnisend cannot do.
Omnisend’s edge: Multi-channel flows that combine email, SMS, and push notifications in a single automation. Klaviyo only supports email and SMS.
Segmentation
Klaviyo wins here. Its segmentation engine uses purchase history, browsing behavior, predicted CLV, churn risk, and custom events. You can build segments like “customers with CLV > $500 who have not purchased in 60 days” — and they update in real time.
Omnisend offers solid segmentation based on purchase history and engagement, but lacks predictive scoring.
SMS Marketing
Both include SMS. Klaviyo bundles SMS credits into its pricing tiers. Omnisend includes SMS credits on Standard plans with a per-message overage fee.
Neither has a clear advantage — both handle transactional SMS, promotional campaigns, and automation-triggered messages.
Reporting
Klaviyo’s reporting is deeper. Revenue attribution, cohort analysis, and predictive dashboards give you a clear picture of email ROI. Omnisend’s reporting covers opens, clicks, revenue, and campaign performance but lacks the analytical depth.
Who Should Choose Omnisend?
- Stores doing under $1M in annual revenue
- Businesses that want email + SMS + push in one platform
- Price-sensitive merchants who need solid automation without premium pricing
- Shopify stores that want good (not best-in-class) integration at a lower price
Read our full Omnisend review for a detailed breakdown.
Who Should Choose Klaviyo?
- Stores doing $1M+ in annual revenue where the ROI from better targeting justifies the cost
- Businesses that need predictive analytics (CLV, churn scoring)
- Data-driven marketers who want deep segmentation and reporting
- Stores already paying for advanced tools — Klaviyo replaces several
Read our full Klaviyo review for a detailed breakdown.
The Verdict
Choose Omnisend if you want 80% of Klaviyo’s capabilities at 50-60% of the cost. For most small to mid-size ecommerce stores, Omnisend delivers excellent value.
Choose Klaviyo if your store generates enough revenue to justify the premium and you need predictive analytics to optimize your campaigns. The extra cost pays for itself at scale.
Both platforms offer free plans — test both with your store data before committing.