Klaviyo vs Systeme.io
Klaviyo is a email marketing platform while Systeme.io is a all-in-one marketing platform. Klaviyo has been around since 2012, giving it a 5-year head start over Systeme.io (founded 2017). Systeme.io is the more affordable option at $17/mo — that's $3 less than Klaviyo's $20/mo entry point. Both offer free plans to get started. Klaviyo has the edge with A/B testing, SMS marketing, advanced analytics.
Quick Verdict
Klaviyo wins on deliverability.
Systeme.io wins on price, rating, integrations.
Best for most users: Systeme.io (solopreneurs).
Klaviyo
The platform for unified customer data
Klaviyo is the gold standard for ecommerce email and SMS marketing, particularly for Shopify stores. Its deep integration with ecommerce platforms enables sophisticated automated flows like abandoned cart, post-purchase, and win-back sequences based on real purchase data.
Systeme.io
Budget-friendly all-in-one marketing platform for solopreneurs
Systeme.io is a bootstrapped French all-in-one marketing platform founded by Aurelien Amacker in 2017 that bundles email marketing, sales funnels, online courses, blogs, affiliate management, and payment processing starting at $0/month with 2,000 contacts and unlimited emails. With its $17/month Startup plan and $97/month Unlimited tier, it targets solopreneurs and creators who want to consolidate their entire marketing stack without paying for multiple subscriptions, though it trades design flexibility and advanced features for simplicity and affordability.
Feature Comparison
| Feature | Klaviyo | Systeme.io |
|---|---|---|
| Rating | 4.6/5 | 4.8/5 |
| Starting Price | $20/mo | $17/mo |
| Free Plan | 250 subscribers | 2,000 contacts, unlimited emails, 3 funnels (15 steps), 1 blog, 1 course, 1 automation workflow, 1 custom domain |
| Founded | 2012 | 2017 |
| Email Templates | 100 | 50 |
| Integrations | 350 | 5,000 |
| Deliverability Rate | 99% | 95% |
| Marketing Automation | ✓ | ✓ |
| A/B Testing | ✓ | ✕ |
| Landing Pages | ✓ | ✓ |
| Segmentation | ✓ | ✓ |
| Drag & Drop Editor | ✓ | ✓ |
| SMS Marketing | ✓ | ✕ |
| Ecommerce Features | ✓ | ✓ |
| API Access | ✓ | ✓ |
| Multi-Language | ✓ | ✓ |
| Web Push Notifications | ✕ | ✕ |
| Live Chat | ✕ | ✕ |
| Advanced Analytics | ✓ | ✕ |
Klaviyo: Pros & Cons
Pros
- +Best-in-class ecommerce integrations (Shopify, WooCommerce)
- +Powerful segmentation with predictive analytics
- +Excellent deliverability (99%+)
- +Revenue attribution for every email and SMS
- +Deep customer data platform capabilities
Cons
- −Expensive for large lists
- −Steep learning curve
- −Free plan very limited (250 contacts)
- −SMS credits sold separately
- −Can be overkill for non-ecommerce businesses
Systeme.io: Pros & Cons
Pros
- +Exceptionally generous free plan with 2,000 contacts, unlimited emails, funnels, blog, course, and affiliate program management
- +All-in-one platform replaces 5-6 separate tools (email, funnels, courses, blog, affiliate management, payments) at a fraction of the cost
- +Startup plan reduced to just $17/month in May 2025 while competitors raised prices, offering outstanding value
- +60% lifetime recurring affiliate commission with second-tier payouts makes it one of the highest-paying affiliate programs in SaaS
- +Zero transaction fees on any plan with support for Stripe, PayPal, Razorpay, Flutterwave, Mercado Pago, and Paystack
Cons
- −Limited design customization -- pages and emails lack the visual polish of dedicated tools like Leadpages or Mailchimp
- −No A/B split testing for emails, limiting optimization capabilities for serious email marketers
- −Community feature has no dedicated mobile app, requiring browser-based access which feels outdated
- −Recurring technical issues reported by users including Stripe integration failures and payment messaging problems lasting multiple days
- −Course creation is functional but basic compared to specialized platforms like Teachable or Thinkific
The Verdict
Systeme.io edges ahead with a 4.8/5 rating compared to Klaviyo's 4.6/5. The gap comes mainly from support (4.6 vs 4.1) and ease of use (4.9 vs 4.6). On deliverability, Klaviyo reports 99% compared to 95% for Systeme.io — a meaningful difference if inbox placement is critical for your campaigns.
| Criterion | Weight | Klaviyo | Systeme.io |
|---|---|---|---|
| Starting Price | 30% | $20/mo | $17/mo |
| Deliverability | 25% | 99% | 95% |
| Rating | 25% | 4.6/5 | 4.8/5 |
| Integrations | 10% | 350 | 5000 |
| Free Tier | 10% | Yes | Yes |
Weights determine how much each criterion counts toward the final score. See full methodology
Choose Klaviyo if…
- + You need SMS marketing
- + You need A/B testing
- + You need advanced analytics
- + You're a ecommerce
Choose Systeme.io if…
- + You want lower starting costs ($17/mo)
- + You're a solopreneurs
- + You're a course creators