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Behavioral messaging automation across email, push, and SMS.
Customer.io is a customer engagement platform built for sending automated, data-driven messages based on how people actually behave in your product. Rather than sending list-based blasts, it lets teams trigger messages — across email, push, SMS, in-app, and webhooks — from real-time events and attributes, so a message fires exactly when a user does (or doesn't do) something. That event-driven approach makes it a favorite of product-led and SaaS companies building sophisticated lifecycle, onboarding, and retention messaging.
At its core is a flexible visual workflow builder, powerful segmentation on live behavioral data, and a data pipeline that ingests events from your product and other tools. It suits technical marketing and growth teams that want fine-grained control over targeting and timing, and it scales to complex, high-volume messaging programs. Customer.io prices on the number of profiles (people) you store plus message volume, positioning itself above simple email tools for teams that need behavioral precision.
Customer.io suits SaaS, product-led, and growth teams that want behavior-triggered, cross-channel lifecycle messaging with deep control, rather than basic newsletter sending. Plans run Essentials, Premium, and Enterprise, priced by profiles and volume, so cost scales with audience size and messaging needs.
Pricing Model
By profiles + volume, per month
Starting Price
$100/mo
Free Options
Free trial
From ~$100/month for up to 5,000 profiles. Core cross-channel messaging.
From ~$1,000/month for up to 10,000 profiles. Advanced features.
Custom pricing based on profiles, volume, and requirements.
| Feature | Essentials Popular | Premium | Enterprise |
|---|---|---|---|
| Up to 5,000 profiles | — | — | |
| Email, push & SMS | — | — | |
| Visual workflows | — | — | |
| Segmentation & automation | — | — | |
| Unlimited push & in-app | — | — | |
| Up to 10,000 profiles | — | — | |
| A/B testing | — | — | |
| Advanced segmentation | — | — | |
| Webhooks | — | — | |
| Priority support | — | — | |
| Custom profile volume | — | — | |
| Dedicated support & SLA | — | — | |
| Custom integrations | — | — | |
| Advanced security | — | — | |
| Onboarding services | — | — |
Other
Finance
Communication
Analytics
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API Types
SDK Availability
Verify SDK availability in vendor's documentation.
Developer Features
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Compliance Standards
SOC 2 Type II
EnterpriseISO 27001
EnterpriseGDPR Compliant
GlobalHIPAA
HealthcarePCI DSS
FinanceCCPA
PrivacyFedRAMP
GovernmentCSA STAR
CloudDeployment & Data
Data Residency Options
Verify with vendor for your specific region requirements.
Email, SMS, and marketing automation built for ecommerce.
Customer data platform — collect once, send everywhere.
Email, SMS, and CRM marketing on one affordable platform.
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