Customer.io vs Klaviyo: Pricing Comparison 2026
Side-by-side pricing comparison of Customer.io and Klaviyo. See all plans, features, and costs at a glance.
Bottom line: Customer.io starts at $100/mo and Klaviyo starts at Custom pricing. Compare all 12 pricing tiers side by side.
Last updated: March 16, 2026
Customer.io vs Klaviyo: Quick Pricing Facts
| Feature | Customer.io | Klaviyo |
|---|---|---|
| Starting Price | $100/mo | Custom pricing |
| Number of Plans | 3 | 9 |
| Free Tier | No | Yes |
| Pricing Model | usage-based | usage-based |
| Annual Discount | N/A | N/A |
Customer.io and Klaviyo are both priced at $100/mo, making them equally accessible Email Marketing tools. Together they offer 12 pricing plans with 0 features compared, so the best choice comes down to which features match your needs.
Klaviyo stands out with a free plan for getting started.
Review the detailed tier-by-tier comparison above to see exactly which features are included at each price point and find the best fit for your Email Marketing needs.
| Pricing Plans |  Customer.io Try it free |  Klaviyo Try it free |
|---|---|---|
| Tier 1 | Essentials $100/month | Is Klaviyo's free plan really free? $0/monthCheapest |
| Tier 2 | Premium $1000/month | How long can I stay on the free plan? $0/monthCheapest |
| Tier 3 | Enterprise Custom pricing | Who is the Klaviyo free plan best for? $0/monthCheapest |
| Tier 4 | — | Can I use Klaviyo free plan for both email and SMS marketing? $0/monthCheapest |
| Tier 5 | — | What integrations are available on the free plan? $0/monthCheapest |
| Tier 6 | — | What happens when I exceed the free plan limits? $0/monthCheapest |
| Tier 7 | — | Does the free plan include customer support? $0/monthCheapest |
| Tier 8 | — | Is Klaviyo free plan good for ecommerce stores on Shopify, Wix, or WooCommerce? $0/monthCheapest |
| Tier 9 | — | How do I upgrade from Klaviyo free to a paid plan? $0/monthCheapest |
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Klaviyo
Klaviyo offers a free plan, offers 9 tiers vs 3.
Based on pricing data only. Review the full comparison below for your specific needs.
Best value: Klaviyo
Try Klaviyo freeWhich Should You Choose?
Choose Customer.io if:
- •Your team needs custom enterprise pricing—Customer.io offers negotiated terms for large deployments
- •You prioritize Customer.io's user experience and interface over price (both tools are similarly priced)
- •Customer.io's usage-based pricing lets you match exact team size without tier gaps
Choose Klaviyo if:
- •You need a free plan with core features—Klaviyo offers no-cost access with no credit card required
- •You need 9 pricing tiers for flexible team sizing—more options mean less overpaying for features you don't need
- •You prioritize Klaviyo's user experience and interface over price (both tools are similarly priced)
Klaviyo offers a free plan [1], eliminating the cost barrier for evaluation, while Customer.io requires paid subscription from the start. This gives Klaviyo a significant advantage for teams with budget constraints or extended trial periods. Once you outgrow Klaviyo's free tier, upgrading to a paid plan at approximately Custom pricing provides substantial additional functionality. Compare this pricing path against Customer.io's tiering starting at $100/mo to assess total cost of ownership over 12 months. Klaviyo's 9 tiers provide flexibility at different budgets, while Customer.io's 3 tiers structure may force you into higher-cost plans than necessary for your use case. If evaluation cost matters to your decision, Klaviyo is the obvious starting point with zero financial commitment. Use the free tier to validate core functionality before committing to paid plans from either tool.
Frequently Asked Questions: Customer.io vs Klaviyo
How many pricing plans does Customer.io have vs Klaviyo?
Does Customer.io or Klaviyo offer a free plan?
Does Customer.io or Klaviyo offer custom enterprise pricing?
How do Customer.io and Klaviyo compare for Email Marketing?
Sources
- Customer.io Official Pricing— Vendor pricing page
- Klaviyo Official Pricing— Vendor pricing page
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