Customer.io vs Klaviyo
Compare Customer.io and Klaviyo on features, pricing, and buyer fit using the same researched criteria.
Customer.io
Product-led event-driven messaging across email, push, SMS, and in-app — MAP-adjacent to classic ESPs.
Best for
- • Product-led teams sending event-driven multi-channel messages
- • SaaS/apps needing behavioral onboarding and lifecycle messaging
- • Teams comparing Braze-class engagement with a mid-market entry
Starting from $100.00/user/mo
No free plan
VS
Our verdict
There is no universal winner between Customer.io and Klaviyo. Choose Customer.io when Product-led teams sending event-driven multi-channel messages. Choose Klaviyo when Ecommerce brands needing email + SMS with catalog-aware flows. Criterion scores come from approved SoftwareGlimpse editorial assessments and first-party research — not hands-on lab testing.
Klaviyo is better for
- ✓ Templates
- ✓ Segmentation
- ✓ Landing pages
- ✓ Analytics
Tie
- • Automation
Choose Customer.io if: Product-led teams sending event-driven multi-channel messages
Choose Klaviyo if: Ecommerce brands needing email + SMS with catalog-aware flows
Klaviyo
Ecommerce email + SMS platform with Shopify-native flows, revenue attribution, and active-profile billing.
Best for
- • Ecommerce brands needing email + SMS with catalog-aware flows
- • Shopify-centric teams prioritizing revenue attribution
- • Growth-stage stores where lifecycle automation is the primary job
Starting from $20.00/user/mo
Free plan available
Customer.io vs Klaviyo pricing
Customer.io researched starting price from $100/mo. Klaviyo researched starting price from $20/mo; a free plan is researched. Affiliate economics excluded.
Customer.io
From $100.00/user/mo
Klaviyo
From $20.00/user/mo
Customer.io
Starting from $100.00/user/mo
Free trial available
- EssentialsPopular$100.00/mo
- From $100/mo — 5,000 profiles / 1M emails/mo (research).
- included profiles entry: 5000
- included emails monthly: 1000000
- Premium$1,000.00/mo
- From $1,000/mo — elevated limits and premium integrations (research).
- EnterpriseCustom
- Custom infrastructure, compliance, and support.
Klaviyo
Starting from $20.00/user/mo
No free trial evidenced
- Free$0.00/user/mo
- Free up to 250 active profiles / 500 emails/mo; mobile messaging credits included on free (confirm live).
- max active profiles: 250
- max email sends monthly: 500
- EmailPopular$20.00/mo
- From ~$20/mo at 251–500 active profiles (research floor). Scales by active profiles — confirm live pricing slider.
- included active profiles entry: 500
- Email + SMS$35.00/mo
- From ~$35/mo at entry profile bands (research floor). Email + SMS packaging; confirm live slider and SMS credit rates.
- included active profiles entry: 500
Estimate your team cost
Monthly estimate from verified per-seat list pricing. Confirm on the vendor site before purchasing.
Customer.io
$1,500.00/mo
Klaviyo
$300.00/mo
+$1,200.00/mo — Customer.io costs more
Verified monthly unit prices · Aug 17, 2026
Prices in USD
Shown per user / month from verified list pricing.
Plans can change
Confirm live vendor rates before purchasing.
Add-ons may apply
Calling, SMS, or usage fees can add cost.
Independence
Affiliate status never changes pricing outcomes.
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