Side-by-side
Customer.io vs Klaviyo
Pricing, founders, indie status and curated alternatives compared from our directory — all data points sourced from each tool's public site or press materials.
At a glanceCustomer.ioKlaviyo
- Pricing
- $100/mo (Essentials)
- $20/mo
- Pricing model
- Paid
- Freemium
- Founded
- 2012
- 2012
- Location
- —
- Boston, USA
- Bootstrapped
- —
- —
- Open source
- —
- —
- Category
- Marketing Automation
- Newsletters & Email
- Indie alternatives
- 4
- 5
- Founders
- Colin Nederkoorn, John Allison
- Andrew Bialecki, Ed Hallen
Key differences
Pricing
Klaviyo starts cheaper at $20/mo; Customer.io starts at $100/mo (Essentials).
Funding
Both are venture-backed.
Founded
Both founded in 2012.
Category
Customer.io sits in Marketing Automation; Klaviyo sits in Newsletters & Email.
Indie alternatives
Customer.io has 4 curated indie alternatives in our directory; Klaviyo has 5.
Differences are derived directly from the data on each tool's page. Empty fields mean we haven't verified a value yet — never that one tool lacks the capability.
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