Customer.io has no permanent free plan in our data — its free option is: Trial.

What is the cheapest paid Customer.io plan?

Essentials starts at $100/month.

How is Customer.io billed?

*additional cost Support packages available for Premium and Enterprise Plans Raised under $10M? Early-stage companies get a full year free through our Startup Program.

What are the best Customer.io alternatives?

Popular alternatives are Klaviyo, Loops, Brevo. Compare their plans side by side on this page.

email API pricing

by Customer.io

Official Pricing

Customer.io pricing, plans & costs

Q: How much does Customer.io cost?

Customer.io has 3 plans: Essentials ($100/mo); Premium (Custom quote); Enterprise (Custom quote).

Starts at: $100/mo
Free plan: No
Plans: 3
Billed by: profiles

Plans at a glance

Customer.io plans and prices

Checked against the official pricing page · 2026-10-08

Cost calculator

Customer.io cost calculator

Number of profiles

25K

Essentials estimate

Upgrade needed

$100/mo

Estimate covers the main usage meter only; taxes and add-ons are excluded.

Customer.io plans at 25K

vs alternatives (cheapest plan)

Brevo$30
Customer.ioCustom
KlaviyoCustom
LoopsCustom

How much does Customer.io cost per month?


2,500	—	Custom	Custom
12.5K	—	Custom	Custom
25K	—	Custom	Custom
125K	—	Custom	Custom
500K	—	Custom	Custom

2,500

Essentials: —
Premium: Custom
Enterprise: Custom

12.5K

Essentials: —
Premium: Custom
Enterprise: Custom

25K

Essentials: —
Premium: Custom
Enterprise: Custom

125K

Essentials: —
Premium: Custom
Enterprise: Custom

500K

Essentials: —
Premium: Custom
Enterprise: Custom

Cheapest plan per volume highlighted. "—" means the plan does not allow that volume.

Customer.io feature comparison from the official pricing page

Feature	Essentials	Premium	Enterprise
AI Agent (beta): Session limits	Standard	Elevated	Custom
AI Agent (beta): Persistent Memory	Included	Included	Included
AI Agent (beta): Core Execution Skills	Included	Included	Included
AI Agent (beta): Custom Execution Skills	3	10	Custom
AI Agent (beta): Routines: # of tasks	1	5	Custom
AI Agent (beta): Routines: frequency	Weekly	Daily	Custom
Monthly email sends	1M	Custom	Custom
Transactional emails	Included	Included	Included
Monthly push and in-app	Unlimited	Unlimited	Unlimited
Mobile SDKs	Included	Included	Included
Monthly SMS sends	Custom	Custom	Custom
WhatsApp (Native)	Included	Included	Included
LINE	Included	Included	Included
Webhook (send & receive)	Unlimited	Unlimited	Unlimited
Anonymous messages	Not included	Unlimited	Unlimited
LLM actions	Included	Included	Included
Visual workflow builder	Included	Included	Included
Cross-channel campaign automation	Included	Included	Included
Send-time optimization	Included	Included	Included
In-app message suggestions	Included	Included	Included
API-triggered broadcasts	Included	Included	Included
Scalable Personalization	Included	Included	Included
Custom SMTP	Included	Included	Included
Profiles (people + objects)	5,000	Custom	Custom
People attributes	Unlimited	Unlimited	Unlimited
Custom objects	Included	Included	Included
Object types	2	10	Custom
Segments	Included	Included	Included
AI-powered segment builder	Included	Included	Included
Suggested segments	Included	Included	Included
Nested data	Included	Included	Included
Ad audience sync	Included	Included	Included
Custom collections	Not included	Included	Included
Drag-and-drop visual editor	Included	Included	Included
Code editor	Included	Included	Included
AI-generated global styles	Included	Included	Included
AI translator for messages	Included	Included	Included
Email content analysis	Included	Included	Included
Reusable components	Included	Included	Included
Saved templates & version control	Included	Included	Included
Inbox previews	25	25	25
Monthly API calls	Unlimited	Unlimited	Unlimited
Integrations	Basic	Basic & Premium	Basic & Premium
MCP server	Included	Included	Included
Data index	Included	Included	Included
Connected forms	Included	Included	Included
Privacy management	Included	Included	Included
Reverse ETL	Included	Included	Included
Data warehouse destinations	Not included	Included	Included
Data replay	Not included	Included	Included
Dashboards	Included	Included	Included
Campaign reporting	Included	Included	Included
Workspace performance dashboard	Included	Included	Included
Survey analysis	Included	Included	Included
Data export	Included	Included	Included
A/B & multivariate testing	Included	Included	Included
Conversion tracking	Included	Included	Included
Universal search	Included	Included	Included
SSO & 2-factor authentication	Included	Included	Included
US / EU data centers	Included	Included	Included
SOC Tier II Compliance	Included	Included	Included
Standard role-based permissions	Included	Included	Included
Custom role-based permissions	Not included	Included	Included
Managed deliverability	Not included	Included	Included
HIPAA Compliance	Not included	Custom	Custom
Audit logging & data governance	Not included	Not included	Available by Consultation
Dedicated hardware	Not included	Not included	Included
Documentation	Included	Included	Included
Community support	Included	Included	Included
Email support	Included	Included	Included
Chat support	Not included	Included	Included
Onboarding support	Not included	Included	Included
Dedicated Customer Success Manager	Not included	Included	Included
Migration support	Not included	Included	Included
Dedicated Technical Implementation Specialist	Not included	Included	Included
Shared Slack channel	Not included	Not included	Included
2-hour first outreach response time	Not included	Included	Included
User seats	Unlimited	Unlimited	Unlimited
Workspaces	2	Unlimited	Unlimited
Additional people & object profiles	$0.009	Custom	Custom

AI Agent (beta): Session limits

Essentials: Standard
Premium: Elevated
Enterprise: Custom

AI Agent (beta): Persistent Memory

Essentials: Included
Premium: Included
Enterprise: Included

AI Agent (beta): Core Execution Skills

Essentials: Included
Premium: Included
Enterprise: Included

AI Agent (beta): Custom Execution Skills

Essentials: 3
Premium: 10
Enterprise: Custom

AI Agent (beta): Routines: # of tasks

Essentials: 1
Premium: 5
Enterprise: Custom

AI Agent (beta): Routines: frequency

Essentials: Weekly
Premium: Daily
Enterprise: Custom

Monthly email sends

Essentials: 1M
Premium: Custom
Enterprise: Custom

Transactional emails

Essentials: Included
Premium: Included
Enterprise: Included

Monthly push and in-app

Essentials: Unlimited
Premium: Unlimited
Enterprise: Unlimited

Mobile SDKs

Essentials: Included
Premium: Included
Enterprise: Included

Monthly SMS sends

Essentials: Custom
Premium: Custom
Enterprise: Custom

WhatsApp (Native)

Essentials: Included
Premium: Included
Enterprise: Included

LINE

Essentials: Included
Premium: Included
Enterprise: Included

Webhook (send & receive)

Essentials: Unlimited
Premium: Unlimited
Enterprise: Unlimited

Anonymous messages

Essentials: Not included
Premium: Unlimited
Enterprise: Unlimited

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How Customer.io pricing works

Customer.io offers tiered pricing starting with Essentials at $100 per month (billed monthly) for up to 5,000 profiles and 1 million monthly email sends, Premium starting at $1,000 per month (billed yearly) with custom profile and email volume, and custom Enterprise pricing. Overage fees apply on Essentials for additional profiles at $0.009 each, additional emails at $0.12 per 1,000, and additional AI credits at $10 per 100K.

*additional cost
Support packages available for Premium and Enterprise Plans
Raised under $10M? Early-stage companies get a full year free through our Startup Program.

Customer.io is best for

Customer.io add-ons and extra charges

Additional people & object profiles (Essentials)

$0.009

Additional 1,000 emails

$0.12

Additional AI credits

$10 / 100K

Customer.io alternatives

Klaviyo

Custom at 25K

E-commerce data · Omnichannel · Shopify ecosystem

Customer.io vs Klaviyo

Loops

Custom at 25K

SaaS lifecycle email · Event tracking · Modern UI

Customer.io vs Loops

Brevo

$30/mo at 25K

Transactional + marketing · SMS · EU-based

Customer.io vs Brevo

Customer.io pricing FAQ

Source: official Customer.io pricing page. Verified 2026-10-08. Prices change — confirm before buying.