# Customer.io

> Lifecycle and CRM automation across email, SMS, push

Source: https://aistack.sh/tool/customer-io
Category: Lifecycle email
Site: https://customer.io
Status: active
Last verified by a human: 2026-09-06

A lifecycle and CRM automation platform, not a newsletter tool: behavioral triggers, multi-channel journeys, and data-warehouse-style customer profiles across email, SMS, and push. $100/mo covers the entry tier at 5,000 profiles.

## Pricing

As published on the tool page: $100/mo 5k profiles

Read from https://customer.io/pricing/ on 2026-09-07:

- Essentials: $100 per month
- Premium: $12000 per year
- Enterprise: custom / contact per year

## Alternatives

- Klaviyo — https://aistack.sh/tool/klaviyo

## Head-to-head comparisons

- [Customer.io vs Klaviyo](https://aistack.sh/compare/customer-io-vs-klaviyo) (markdown: https://aistack.sh/compare/customer-io-vs-klaviyo/llms.txt)

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From aistack.sh. Last updated 2026-09-06.