Customer.io vs Klaviyo
What each one’s own pages state, side by side. Every value is a quote AirStack found on that product’s pages; “Not observed” means AirStack has not found it on that product’s pages.
| Customer.io | Klaviyo | |
|---|---|---|
| What it says it does | Customer.io: Customer Engagement Platform For Better Outcomes customer.io | Klaviyo is the autonomous B2C CRM and AI marketing platform klaviyo.com |
| Starting at | $ 100 Essentials / month | Not observed |
| Integrations | Amazon S3, Amplitude, Branch, Salesforce, Facebook Lead Ads, Google Ads, Mixpanel, Snowflake, Twilio, Typeform, Segment, Hubspot customer.io | Adobe Commerce (Magento), BigCommerce, ChatGPT, Claude, Salesforce Commerce Cloud, Shopify, Wix, WooCommerce klaviyo.com |
| Compliance | CCPA, GDPR, HIPAA, ISO 27001, SOC 2 customer.io | CCPA, GDPR, ISO 27001, SOC 2 klaviyo.com |
| Free plan | Not observed | Yes klaviyo.com |
| Plans | Enterprise, Guided, Launch, Plus, Essentials, Premium customer.io | Composer, Customer Agent, Data + Analytics, Enterprise, Free, Marketing, Professional Services, Service klaviyo.com |
| Pricing basis | Not observed | paid plans scale based on the number of contacts and channel usage klaviyo.com |
| Customers (their claim) | The customer engagement platform trusted by 11,000+ brands customer.io | Powering 200,000++ relationship-driven brands across 100 countries klaviyo.com |
Where they differ
- Klaviyo’s pages state a free plan; AirStack has not found that on Customer.io’s pages.
- Customer.io claims HIPAA on its own pages; Klaviyo’s pages read by AirStack do not mention it.
Prices are list prices as written on each pricing page; check them before you buy. Nothing here is a ranking or a recommendation.