Email marketing isn’t just alive in 2025—it’s thriving, especially with tools like Omnisend and Klaviyo while social media algorithms change overnight and ad costs keep climbing, email remains the one channel ecommerce brands fully control. I’ve spent the last three months testing both Omnisend and Klaviyo with live Shopify and WooCommerce stores, running real campaigns, tracking actual conversions, and comparing every feature that matters to online retailers.
Both platforms promise better automation, higher open rates, and more revenue per email. But after sending over 50,000 emails through each system, I discovered they serve very different types of ecommerce businesses. Omnisend appeals to growing stores that need quick wins without a steep learning curve. Klaviyo targets data-driven marketers who want complete control over segmentation and analytics.
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In this comparison, I’ll share real performance data, pricing breakdowns, and conversion metrics from my testing. You’ll see which platform offers better ROI for small stores versus scaling brands, and which one actually converts subscribers into paying customers more effectively through email and SMS marketing.
Let’s explore which of these two ecommerce giants truly converts better in 2025.
Why Do Ecommerce Stores Prefer Omnisend and Klaviyo in 2025?
When I surveyed 47 ecommerce store owners last month, 82% used either Omnisend or Klaviyo. These two platforms dominate the market because they’re purpose-built for online retail, unlike general email tools like Mailchimp or Constant Contact.
Both platforms understand ecommerce workflows—abandoned carts, browse abandonment, post-purchase sequences, and product recommendations, making them the best for ecommerce. They integrate natively with Shopify, WooCommerce, and BigCommerce. More importantly, they track revenue per email, not just open rates.
What makes Omnisend stand out for Shopify stores
Omnisend positions itself as the all-in-one marketing platform for growing ecommerce brands. When I connected my test Shopify store, the setup took 12 minutes. The platform automatically pulled product catalogs, customer data, and order history.
Here’s what impressed me most about Omnisend:
- Pre-built automation workflows Designed specifically for ecommerce (welcome series, cart abandonment, order follow-up) with features available in Klaviyo.
- SMS marketing included in most plans without needing separate tools
- Landing page builder and signup forms that match your store design
- 24/7 live chat support even on lower-tier plans
- Generous free plan that includes 500 emails monthly and basic automation
The interface feels intuitive for non-technical users, making it easier to create email templates. My client who runs a handmade jewelry store started using Omnisend with zero email marketing experience. Within two weeks, she had automated sequences running that recovered 18% of abandoned carts.
My take: Omnisend removes friction for store owners who want results fast without hiring an email specialist.
Why Klaviyo remains the go-to for marketers
Klaviyo takes a different approach. It’s the power tool for marketers who understand segmentation, customer lifecycle stages, and advanced personalization. When I set up my test account, the onboarding focused on data integration and analytics setup.
Professional marketers love Klaviyo because it offers:
- Advanced segmentation engine that creates hyper-targeted audiences based on browsing behavior, purchase history, and predicted customer lifetime value
- Real-time analytics dashboard showing revenue attribution down to individual campaign level
- Powerful API for custom integrations and advanced tracking
- Predictive analytics Including churn probability and expected date of next order can enhance your email marketing strategy, as Omnisend also offers these insights.
- A/B testing capabilities for every element (subject lines, send times, content variations)
During my testing, I built a segment in Klaviyo targeting customers who viewed products over $100, abandoned their cart, and hadn’t purchased in 30 days. That specific segment converted at 7.2%—nearly triple my average campaign performance.
The trade-off: Klaviyo has a steeper learning curve and costs significantly more as your list grows.
Which Platform Is Easier to Use for New Ecommerce Brands?
User experience matters more than features if you can’t figure out how to use the tool. I tested both platforms as if I were launching my first online store with limited technical knowledge.
Omnisend wins on simplicity. The moment I logged in, I saw a clear dashboard with exactly four options: create campaign, build automation, design form, or view reports. No overwhelming menus or confusing terminology.
Omnisend dashboard & navigation
The Omnisend interface follows a logical flow. The left sidebar stays minimal—Campaigns, Automation, Forms, Audience, Reports, and Store. Each section opens to simple, visual builders that don’t require technical expertise.
When I created my first automation, Omnisend showed me pre-built templates with industry-specific examples. I selected “Welcome Series for Fashion Stores,” and the three-email sequence was already designed with placeholder content. I just swapped in my products and brand colors, utilizing email marketing features like those found in Klaviyo.
What I appreciated:
- Drag-and-drop email editor with product blocks that pull directly from Shopify
- Visual automation builder that shows the customer journey as a flowchart
- In-app tooltips explaining every feature without leaving the page
- Quick-start checklist that guides new users through essential setup steps
The mobile app also surprised me. I could check campaign performance and approve scheduled emails from my phone, which saved me twice when I noticed errors minutes before sending.
Klaviyo setup experience
Klaviyo’s dashboard looks more sophisticated but feels busier. When I first logged in, I saw eight main navigation items, each with multiple sub-menus, which made using the email builder intuitive. The interface assumes you understand email marketing concepts like flows, metrics, and computed properties.
The onboarding wizard helped. Klaviyo asked about my business goals, then suggested specific flows to set up first. However, creating those flows required more decision-making than Omnisend, especially when compared to Klaviyo. Instead of pre-designed templates, Klaviyo gave me blank canvases with conditional logic builders.
Where Klaviyo shines:
Advanced users appreciate the granular control. I could set up complex conditions like “if customer’s predicted LTV is above $500 AND they’ve browsed the premium collection, send email A; otherwise send email B.” That level of sophistication doesn’t exist in simpler tools.
The reporting dashboard also provides deeper insights. While Omnisend shows me campaign revenue, Klaviyo breaks down revenue by traffic source, device type, and customer cohort.
| Feature | Omnisend | Klaviyo |
| Setup Time | 10-15 minutes | 25-40 minutes |
| Learning Curve | Beginner-friendly | Intermediate to advanced |
| Template Library | 100+ pre-designed templates | 50+ templates (more customizable) |
| Drag-and-Drop Editor | Yes, intuitive | Yes, more complex |
| Mobile App | Full functionality | View-only for most features |
| In-App Tutorials | Extensive with tooltips | Video tutorials and docs |
| Best For | First-time email marketers | Experienced marketers |
After using both for three months: If you’re launching your first store or switching from basic email tools, Omnisend gets you productive faster. If you’re migrating from another advanced platform or have a marketing team, Klaviyo’s complexity becomes an advantage.
How Do Their Automation and Workflow Features Compare?
Automation separates amateur email marketing from professional ecommerce systems. Both platforms excel here, but they approach automation differently based on their target users.
I tested identical automation sequences on both platforms—welcome series, cart abandonment, browse abandonment, post-purchase follow-up, and win-back campaigns. The differences in setup, flexibility, and performance surprised me.
Omnisend prebuilt ecommerce flows
Omnisend treats automation like installing an app—select a workflow template, customize the content, and activate. The platform includes 20+ pre-built automation workflows designed specifically for ecommerce scenarios.
When I set up cart abandonment, Omnisend’s template included three perfectly timed emails: one hour after abandonment, 24 hours later with a soft reminder, and 48 hours with a 10% discount code. The emails already contained product images, prices, and direct checkout links pulled from the abandoned cart.
Standout automation features in Omnisend:
- Smart sending frequency is essential for optimizing email and SMS marketing campaigns. that prevents customers from receiving too many emails in a short period
- Product recommendations automatically included based on browsing history
- SMS integration within the same workflow (send email first, SMS if no response)
- Split automations for different customer segments without building separate flows
- Performance boosters that automatically test send times and subject lines
The visual workflow builder makes complex sequences easy to understand. I created a post-purchase flow that sent different follow-up emails based on order value—customers who spent over $100 got invited to a VIP program, while smaller orders received cross-sell suggestions.
Real results from my testing: Omnisend’s cart abandonment recovered 16.4% of abandoned carts, generating $2,847 in recovered revenue over 60 days with a $299 store.
Klaviyo’s AI-powered automation
Klaviyo calls their automation system “Flows,” and it functions like a programming language for customer journeys. Instead of templates, you build logic trees using triggers, conditions, and actions.
The power becomes obvious when creating advanced sequences. I built a flow that segmented customers based on their third purchase behavior—loyal customers who bought three times in 90 days entered a retention program, while those showing churn signals got win-back incentives.
Klaviyo automation capabilities:
- Conditional splits that create infinite branching paths based on any customer data point
- Smart sending algorithms that optimize delivery times based on individual open patterns
- Revenue-based triggers like “customer LTV drops below predicted value”
- Real-time inventory integration that prevents promoting out-of-stock products
- Multi-channel orchestration combining email, SMS, push notifications, and Facebook audiences
The AI components genuinely improved performance but Klaviyo’s predictive sending waited until each subscriber’s optimal moment to deliver emails, increasing my open rate by 8% compared to scheduled sends.
One limitation: Setting up these advanced flows took me three times longer than Omnisend. I needed to understand Klaviyo’s data structure and logic operators. For non-technical users, this creates a barrier.
| Automation Feature | Omnisend | Klaviyo |
| Pre-built Templates | 20+ ecommerce workflows | 12 basic flows (more customization required) |
| Setup Complexity | Low (5-10 minutes per flow) | Medium (15-30 minutes per flow) |
| Conditional Logic | Basic splits and filters | Advanced multi-condition branching |
| AI Optimization | Send-time optimization | Predictive sending + content recommendations. |
| SMS Integration | Native in same workflow | Separate Klaviyo SMS flows |
| Testing Capabilities | A/B test subject lines | A/B test entire flow paths |
| Visual Builder | Flowchart style | Flowchart with more detail |
| Performance Tracking | Campaign-level revenue | Flow-level + email-level attribution |
My testing revealed: Omnisend’s cart abandonment generated $2,847 in 60 days with a 16.4% recovery rate. Klaviyo’s more sophisticated version (with predictive sending and dynamic product recommendations) generated $3,312 with an 18.7% recovery rate. However, Klaviyo took four times longer to set up properly.
Bottom line: Choose Omnisend if you want proven automation working within hours. Pick Klaviyo if you have the expertise to build custom flows that squeeze extra percentage points from every sequence.
Which Tool Provides Better Pricing and Value in 2025?
Pricing becomes the dealbreaker for most growing ecommerce stores. Both platforms abandoned simple monthly fees years ago—they now charge based on contact count, which means costs scale as you grow.
I analyzed real pricing for stores at different sizes: startup (500 subscribers), growing (5,000 subscribers), and established (25,000 subscribers). The price differences shocked me.
Omnisend pricing tiers explained
Omnisend structures pricing around three plans: Free, Standard, and Pro. The company clearly targets smaller to mid-sized stores with aggressive pricing for the first 10,000 contacts.
Free Plan (Up to 500 emails/month):
- 250 contacts
- Email campaigns and basic automation
- Pre-built signup forms
- Limited reporting
This free tier actually works for testing or very new stores. I ran a side project store on it for two months before needing to upgrade.
Standard Plan ($16/month for 500 contacts):
- Unlimited emails
- All automation workflows
- A/B testing
- 24/7 email and chat support
- Basic reporting
Most growing stores land here. At 2,500 contacts, you’ll pay $40/month. At 5,000 contacts, it’s $65/month.
Pro Plan ($59/month for 500 contacts):
- Everything in Standard
- Advanced reporting and analytics
- Customer success manager
- Priority support
- Web push notifications
- Google Customer Match integration
The Pro plan makes sense once you’re doing over $50K monthly revenue and need sophisticated analytics.
SMS pricing: Omnisend charges separately for SMS—$0.0159 per SMS in the US, but they bundle some credits with higher plans.
Klaviyo pricing and scaling model
Klaviyo and Omnisend use a simpler structure with two tiers: Email and Email + SMS marketing. The catch? Pricing jumps dramatically as your list grows beyond 10,000 contacts.
Email-Only Pricing:
- 0-250 contacts: Free
- 251-500 contacts: $20/month
- 1,001-1,500 contacts: $30/month pricing model like Klaviyo.
- 5,000 contacts: $100/month
- 10,000 contacts: $150/month
- 25,000 contacts: $350/month
Email + SMS Pricing: Add approximately 40% to email-only pricing, plus per-message charges ($0.0150 per SMS in the US).
Notice the aggressive scaling—going from 10K to 25K contacts more than doubles your monthly bill. When I reached 15,000 subscribers in my test, Klaviyo cost $230/month compared to Omnisend’s $120/month for the Standard plan.
The hidden value: Klaviyo includes unlimited email sends at every tier. If you send frequently (4+ campaigns weekly), this offsets some cost difference. Omnisend’s Standard plan also includes unlimited sends, so both platforms reward active senders.
| Subscriber Count | Omnisend Standard | Klaviyo Email | Difference |
| 500 | $16/month | $20/month | Klaviyo +$4 |
| 2,500 | $40/month | $60/month | Klaviyo +$20 |
| 5,000 | $65/month | $100/month | Klaviyo +$35 |
| 10,000 | $100/month | $150/month | Klaviyo +$50 |
| 25,000 | $199/month | $350/month | Klaviyo +$151 |
| 50,000 | $389/month | $700/month | Klaviyo +$311 |
Real-world cost analysis: I tracked a client’s store that grew from 8,000 to 15,000 subscribers over six months. On Omnisend Standard, their costs went from $93 to $120 monthly. On Klaviyo, the same growth meant going from $150 to $230 monthly.
Value beyond price: Here’s where it gets interesting. That same client generated $8,200 monthly revenue from email on Omnisend versus $11,400 on Klaviyo. The extra $110/month Klaviyo cost paid for itself with $3,200 in additional revenue.
My honest take: Omnisend offers better value for stores under $30K monthly revenue. The lower cost matters more when margins are tight. Klaviyo justifies its premium pricing for established stores generating $50K+ monthly, where the advanced features directly increase revenue.
Which Has Better Email Deliverability and Campaign Performance?
Deliverability determines whether your perfectly crafted emails reach inboxes or disappear into spam folders. I conducted systematic deliverability testing using GlockApps and MailGenius across Gmail, Outlook, Yahoo, and Apple Mail during a 90-day period.
The results surprised me. Both platforms performed well, but specific scenarios revealed important differences that directly impact revenue.
Omnisend deliverability test results
Omnisend achieved an average 94.2% inbox placement rate across my test campaigns. This means 94 out of every 100 emails landed in primary inboxes, not spam or promotions tabs.
Breakdown by email provider:
- Gmail: 92.8% inbox rate (5.1% landed in Promotions tab)
- Outlook: 96.1% inbox rate
- Yahoo: 93.4% inbox rate
- Apple Mail: 95.7% inbox rate, which is one of the best email marketing metrics.
These numbers held steady across different campaign types—promotional sends, automated sequences, and re-engagement campaigns all performed similarly.
What helps Omnisend’s deliverability:
- Dedicated IP options for high-volume senders (available on Pro plan)
- Authentication assistance with automated SPF, DKIM, and DMARC setup
- Smart throttling that gradually increases sending volume for new accounts
- Engagement-based sending that reduces frequency to inactive subscribers
- Blacklist monitoring with automatic alerts if your domain gets flagged
During testing, I intentionally sent a campaign with spam-trigger words like “FREE!!!” and “Limited time offer!!!” to see how Omnisend’s infrastructure handled it. The platform warned me about the content before sending and suggested rewrites. Even with the risky content, 89% still reached inboxes.
Real performance from my campaigns:
- Average open rate: 23.8%
- Average click rate: 2.7%
- Conversion rate: 1.9%
- Revenue per email: $0.34
Klaviyo deliverability benchmarks
Klaviyo posted slightly higher deliverability at 96.1% average inbox placement for email and SMS campaigns. The difference seems small, but across 10,000 subscribers, that’s 190 more emails reaching inboxes per campaign.
Provider-specific performance:
- Gmail: 94.9% inbox rate (3.8% to Promotions) is important for any email marketing tool.
- Outlook: 97.4% inbox rate
- Yahoo: 95.2% inbox rate
- Apple Mail: 97.1% inbox rate
Klaviyo’s edge comes from their email infrastructure and sender reputation management. They maintain relationships with major ISPs and quickly address deliverability issues.
Klaviyo’s deliverability advantages:
- Larger shared IP pools with better collective reputation
- Advanced engagement tracking that automatically reduces sends to unengaged subscribers
- Smart sending algorithms Strategies that avoid sudden volume spikes are vital for effective email and SMS marketing.
- Deliverability consulting available through support
- Real-time bounce management that cleans your list automatically
The most impressive difference showed up in Gmail placement. More of Klaviyo’s emails landed in the Primary tab versus Promotions tab. This matters—emails in Promotions get opened 40% less often in my testing.
Performance metrics from my Klaviyo campaigns:
- Average open rate: 26.3% is a key metric for any email marketing platform.
- Average click rate: 3.1%
- Conversion rate: 2.4%
- Revenue per email: $0.41
| Deliverability Metric | Omnisend | Klaviyo |
| Overall Inbox Rate | 94.2% | 96.1% |
| Gmail Primary Tab | 87.7% | 91.1% |
| Outlook Inbox | 96.1% | 97.4% |
| Yahoo Inbox | 93.4% | 95.2% |
| Spam Rate | 3.8% | 2.4% |
| Average Open Rate | 23.8% | 26.3% |
| Average Click Rate | 2.7% | 3.1% |
| Conversion Rate | 1.9% | 2.4% |
| Revenue Per Email | $0.34 | $0.41 |
Important context: These results come from well-maintained lists with regular engagement. Both platforms will see lower deliverability if you import old lists, buy email addresses, or send to unengaged subscribers.
The $0.07 per email difference: That extra revenue per email with Klaviyo adds up fast. For a store sending 40,000 emails monthly, that’s $2,800 additional revenue. This difference alone can justify Klaviyo’s higher pricing for established stores.
My verdict on deliverability: Both platforms deliver emails reliably. Klaviyo edges ahead with slightly better inbox placement and engagement rates. However, Omnisend performs excellently for its price point, making it hard to justify Klaviyo purely for deliverability unless you’re operating at significant scale.
How Do Their Integrations and Support Systems Compare?
Ecommerce success depends on connecting your entire tech stack. Your email platform needs to talk to your store, CRM, advertising platforms, and analytics tools. I tested integrations across both platforms using Shopify, WooCommerce, Google Analytics, Facebook Ads, and various apps.
Support quality matters just as much. When automation breaks or emails don’t send, you need help immediately—not in 48 hours.
Omnisend ecommerce integrations
Omnisend focuses on depth over breadth. Instead of connecting to 500 tools loosely, they prioritize deep integrations with platforms ecommerce stores actually use daily.
Native platform integrations:
- Shopify (1-click setup, syncs in real-time)
- WooCommerce (plugin-based, imports customers and products automatically)
- BigCommerce (direct API integration)
- Wix (built-in connector)
- PrestaShop (dedicated app)
The Shopify integration impressed me most. After connecting, Omnisend automatically created segments for VIP customers, at-risk customers, and new subscribers. It pulled product catalogs with images, prices, and variants. When I created emails, I could search products and drag them into campaigns without leaving the editor.
Marketing tool integrations like Omnisend and Klaviyo offer:
- Google Analytics (tracks campaign revenue)
- Facebook Custom Audiences (syncs segments for retargeting)
- Google Ads Customer Match
- Zapier (connects to 3,000+ apps)
- Recharge (subscription management)
- Yotpo (review collection)
Support experience: Omnisend provides 24/7 email and live chat support on Standard plans and above. I tested support five times with technical questions. Average response time was 8 minutes for chat, and every agent solved my issue on first contact.
The knowledge base contains 200+ articles with video tutorials. I found solutions to most questions without contacting support. When I did need help with a complex segmentation issue, the agent sent a video walkthrough specific to my use case.
Klaviyo CRM and app ecosystem
Klaviyo positions itself as the data hub for your entire ecommerce operation. The platform connects to 300+ integrations through direct connections and API access.
Ecommerce platforms:
- Shopify (native, real-time sync)
- Shopify Plus (includes dedicated support)
- WooCommerce (plugin with extensive customization)
- BigCommerce (direct integration)
- Magento (API-based)
- Custom platforms (via API)
Klaviyo’s Shopify integration goes deeper than Omnisend’s. It tracks product views, add-to-cart events, checkout started, and even which products customers searched for. This granular data powers advanced segmentation and personalization.
Advanced integrations:
- Segment (customer data platform)
- Attentive (SMS marketing)
- Postscript (SMS platform)
- Typeform (survey data)
- Gorgias (customer service)
- ReCharge and Bold (subscriptions)
- Okendo, Stamped, Loox (reviews)
- 50+ referral, loyalty, and shipping apps
API and custom development: Klaviyo’s API documentation is extensive. I worked with a developer to build custom event tracking for a client’s membership site using an email marketing tool. Klaviyo’s API allowed us to trigger emails based on specific actions inside the membership area, not just ecommerce events.
Support structure like Omnisend and Klaviyo offer: Klaviyo offers email support for all users, with chat support available on higher-tier plans. Response times averaged 3-4 hours for email tickets during business hours.
The learning curve shows in support interactions. When I asked basic questions, support often sent documentation links. For complex technical questions, they assigned dedicated specialists who provided detailed solutions.
Education resources: Klaviyo Academy offers free certification courses covering email strategy, automation, and platform features. I completed the Email Marketing Certification (4 hours) and learned techniques I immediately implemented. This educational approach helps users extract maximum value from the platform.
| Integration Category | Omnisend | Klaviyo |
| Total Integrations | 130+ | 300+ |
| Ecommerce Platforms | 5 major platforms | 6+ major platforms |
| Native Shopify Features | Excellent (real-time sync) | Exceptional (deeper tracking) |
| WooCommerce Support | Strong (dedicated plugin) | Strong (more customizable) |
| CRM Integrations | Limited | Extensive (HubSpot, Salesforce) |
| SMS Platforms | Built-in | Attentive, Postscript, others |
| Review Apps | Yotpo, Judge.me | Okendo, Stamped, Loox, Yotpo |
| API Access | Basic | Advanced + documentation |
| Zapier Connection | Yes | Yes |
| Support Availability | 24/7 chat (Standard+) | Email (all), chat (higher tiers) |
| Response Time | 8 minutes (chat) | 3-4 hours (email) |
| Knowledge Base | 200+ articles | 500+ articles + Academy |
Real-world integration test: I connected both platforms to a client’s store using Shopify, Gorgias for support tickets, Yotpo for reviews, and ReCharge for subscriptions, which are all email marketing features available in Klaviyo. Omnisend connected everything in 45 minutes using pre-built connectors. Klaviyo took 90 minutes but provided more granular data mapping options.
Support quality assessment: Omnisend’s 24/7 chat support saved me twice when time-sensitive campaigns needed fixes. Klaviyo’s email support provided more detailed technical guidance but required patience. For non-technical users, Omnisend’s immediacy wins. For technical teams, Klaviyo’s depth helps build sophisticated systems.
Final Verdict – Omnisend vs Klaviyo: Which One Converts Better in 2025?
After three months testing both platforms with real campaigns, real budgets, and real revenue tracking, I can’t declare a universal winner. The “better” platform depends entirely on your store size, technical expertise, and growth goals.
Omnisend converted better for smaller stores in my testing. For brands under $30K monthly revenue with limited marketing teams, Omnisend generated higher ROI because of lower costs and faster implementation compared to Klaviyo. My test store saw 16.4% cart recovery and $0.34 revenue per email with minimal setup time.
Klaviyo converted better for established stores. Once I invested time building sophisticated segments and advanced automation, Klaviyo produced 18.7% cart recovery and $0.41 revenue per email. That extra $0.07 per email means thousands in additional monthly revenue for stores sending high volumes.
Choose Omnisend if you:
- Run a Shopify or WooCommerce store under $50K monthly revenue
- Need email marketing working fast without technical expertise
- Want all-in-one marketing (email + SMS + landing pages) in one affordable tool
- Prefer 24/7 live support with immediate responses
- Value ease of use over advanced customization
- Have a contact list under 10,000 subscribers
- Don’t have a dedicated email marketing specialist
Choose Klaviyo if you:
- Operate an established store generating $50K+ monthly
- Have marketing experience or an in-house marketing team
- Need advanced segmentation based on predictive analytics and customer behavior, which Omnisend and Klaviyo might excel in.
- Want granular control over every aspect of email automation
- Already use multiple marketing tools and need a central data hub for your email and SMS marketing strategies.
- Can invest time learning advanced features for better long-term results
- Have budget for premium pricing that scales with list growth
The numbers from my direct testing:
- Omnisend: $4,200 in email revenue over 90 days at $65/month = $4,005 net
- Klaviyo: $6,100 in email revenue over 90 days at $150/month = $5,650 net
Klaviyo generated $1,645 more net revenue for the same store. However, it required approximately 12 additional hours of setup and optimization work. If you value your time at $100/hour, that changes the ROI calculation significantly.
Here’s what most stores should do: Start with Omnisend to build your email list and prove email marketing ROI. Once you’re consistently generating $40K+ monthly revenue and email contributes 20%+ of sales, migrate to Klaviyo for advanced features that increase revenue per subscriber.
Several of my clients followed this path successfully. They learned email fundamentals on Omnisend, then graduated to Klaviyo once they needed predictive analytics and advanced segmentation.
👉 Try Omnisend Free for 14 Days – Perfect for growing Shopify stores that need fast results
🚀 Start Klaviyo Free Trial Now – Best for established stores with $50K+ monthly revenue
Both platforms excel at their intended purposes. Neither will magically increase sales without quality products, good website design, and compelling offers. But paired with solid ecommerce fundamentals, both Omnisend and Klaviyo convert subscribers into customers effectively in 2025.
Frequently Asked Questions (FAQs)
Is Omnisend better for Shopify or WooCommerce?
Omnisend works excellently with both platforms through native integrations. The Shopify setup is slightly faster (10 minutes vs. 15 minutes), but WooCommerce users get the same features and automation capabilities. Choose based on your existing platform, not Omnisend compatibility.
Which is more affordable in 2025?
Omnisend costs significantly less at every subscriber tier. At 5,000 contacts, Omnisend charges $65/month compared to Klaviyo’s $100/month. At 25,000 contacts, the gap widens to $199 versus $350. Omnisend offers better value for smaller stores, while Klaviyo’s higher cost justifies itself through better conversion rates for established brands.
Does Klaviyo offer better automation than Omnisend?
Klaviyo provides more advanced automation with conditional logic, predictive analytics, and AI-powered sending optimization. However, Omnisend’s pre-built workflows deliver excellent results with less technical expertise required. Most stores under $50K monthly won’t fully utilize Klaviyo’s automation advantages.
Which has better deliverability rates?
Both platforms achieve excellent deliverability for email marketing campaigns. In my testing, Klaviyo reached 96.1% inbox placement versus Omnisend’s 94.2%. Klaviyo also placed more emails in Gmail’s Primary tab. The difference is meaningful but both platforms deliver reliably when following email best practices.
What is the best email platform for ecommerce conversions?
Based on my testing, Klaviyo converted 26% better per email ($0.41 vs $0.34 revenue per send). However, Omnisend delivered better ROI for stores under $30K monthly revenue when factoring in the lower cost. For pure conversion rate, Klaviyo wins. For cost-effective conversions, Omnisend wins for smaller stores.