Data + Activation
The all-in-one customer engagement platform
Set up and run campaigns seamlessly without burdening engineering teams.
Our data-first approach ensures easy access and utilization of your data without limitations.
Create campaigns effortlessly, spanning in-app, push, SMS, WhatsApp, LINE, email, and webhooks within one cohesive workflow, and generate custom reports across channels, dates, and objectives.
Trusted by 9,000+ brands
Data + Activation
The all-in-one customer engagement platform
Set up and run campaigns seamlessly without burdening engineering teams.
Our data-first approach ensures easy access and utilization of your data without limitations.
Create campaigns effortlessly, spanning in-app, push, SMS, WhatsApp, LINE, email, and webhooks within one cohesive workflow, and generate custom reports across channels, dates, and objectives.
Trusted by 9,000+ brands
Data + Activation
The all-in-one customer engagement platform
Set up and run campaigns seamlessly without burdening engineering teams.
Our data-first approach ensures easy access and utilization of your data without limitations.
Create campaigns effortlessly, spanning in-app, push, SMS, WhatsApp, LINE, email, and webhooks within one cohesive workflow, and generate custom reports across channels, dates, and objectives.
Trusted by 9,000+ brands
features
Top reasons companies choose Customer.io
Get started for free
Unlike Braze, you can sign up for a free 14-day trial to explore Customer.io.
Get started for free
Unlike Braze, you can sign up for a free 14-day trial to explore Customer.io.
Built for scale
Designed for global enterprise companies with hundreds of millions of users.
Built for scale
Designed for global enterprise companies with hundreds of millions of users.
Unlimited data
Store and use as much data as you need, with unlimited events, attributes, and triggers. Send all your data out of Customer.io at no extra charge.
Unlimited data
Store and use as much data as you need, with unlimited events, attributes, and triggers. Send all your data out of Customer.io at no extra charge.
Scale, flex, and innovate
Designed for universal usability, our platform minimizes operational overhead, ensuring maximum ROI for brands of all sizes.
99.98%
Platform uptime
99%
Customer satisfaction score
12B+
Daily API calls
100B+
Messages sent in 2025
100B+
Webhooks sent in 2025
24/5
Global support coverage
Scale, flex, and innovate
Designed for universal usability, our platform minimizes operational overhead, ensuring maximum ROI for brands of all sizes.
99.98%
Platform uptime
99%
Customer satisfaction score
12B+
Daily API calls
100B+
Messages sent in 2025
100B+
Webhooks sent in 2025
24/5
Global support coverage
We unify your data, messaging, and AI into a single platform, so every interaction with your customers is stronger and more relevant than the last.
Flexible data modeling
Embrace advanced data modeling with Customer.io's seamless integrations, enabling batch updates and multi-identifier workspaces.
Custom objects
Unlock powerful features like custom objects and webhook-triggered campaigns in Customer.io for unlimited data activation. Competitors often cap the number of data points and restrict access to event properties, limiting flexibility in message automation.
Cost effective
Choose Customer.io for cost-effective marketing with unlimited data and flexible payment options. Competitors add extra onboarding and account setup fees, increasing costs beyond data overage charges.
We unify your data, messaging, and AI into a single platform, so every interaction with your customers is stronger and more relevant than the last.
Flexible data modeling
Embrace advanced data modeling with Customer.io's seamless integrations, enabling batch updates and multi-identifier workspaces.
Custom objects
Unlock powerful features like custom objects and webhook-triggered campaigns in Customer.io for unlimited data activation. Competitors often cap the number of data points and restrict access to event properties, limiting flexibility in message automation.
Cost effective
Choose Customer.io for cost-effective marketing with unlimited data and flexible payment options. Competitors add extra onboarding and account setup fees, increasing costs beyond data overage charges.
AI Native
Smarter marketing with AI
We're enabling marketers to say more, do more, and listen more—your tech stack fully connected, allowing you to surface insights faster and act on them with confidence.
Translations
Translate your email, push notifications, in-app messages, or SMS messages across 200+ language variations in seconds. No outside contractors, or long delivery timelines needed!
MCP Server
Customer.io's MCP server offers both read and write capabilities allowing users to query data, test their integrations, and create segments or content. And it works with Claude, ChatGPT, and Cursor.
Generate Brand Styles
Avoid off-brand emails, with generated brand styles based on your domain. Your color palettes, fonts, and buttons will be automatically generated—enabling you to craft content quick.
AI Native
Smarter marketing with AI
We're enabling marketers to say more, do more, and listen more—your tech stack fully connected, allowing you to surface insights faster and act on them with confidence.
Translations
Translate your email, push notifications, in-app messages, or SMS messages across 200+ language variations in seconds. No outside contractors, or long delivery timelines needed!
MCP Server
Customer.io's MCP server offers both read and write capabilities allowing users to query data, test their integrations, and create segments or content. And it works with Claude, ChatGPT, and Cursor.
Generate Brand Styles
Avoid off-brand emails, with generated brand styles based on your domain. Your color palettes, fonts, and buttons will be automatically generated—enabling you to craft content quick.
AI Native
Smarter marketing with AI
We're enabling marketers to say more, do more, and listen more—your tech stack fully connected, allowing you to surface insights faster and act on them with confidence.
Translations
Translate your email, push notifications, in-app messages, or SMS messages across 200+ language variations in seconds. No outside contractors, or long delivery timelines needed!
MCP Server
Customer.io's MCP server offers both read and write capabilities allowing users to query data, test their integrations, and create segments or content. And it works with Claude, ChatGPT, and Cursor.
Generate Brand Styles
Avoid off-brand emails, with generated brand styles based on your domain. Your color palettes, fonts, and buttons will be automatically generated—enabling you to craft content quick.
Security you can trust
Stay compliant with GDPR, HIPAA, SOC 2 Type II, CCPA, and other regulations.
Set rules to proactively block restricted personal data.
Keep data safe by restricting access by user role.
Security you can trust
Stay compliant with GDPR, HIPAA, SOC 2 Type II, CCPA, and other regulations.
Set rules to proactively block restricted personal data.
Keep data safe by restricting access by user role.
Security you can trust
Stay compliant with GDPR, HIPAA, SOC 2 Type II, CCPA, and other regulations.
Set rules to proactively block restricted personal data.
Keep data safe by restricting access by user role.
Customers love us
Preferred by product-led companies
After evaluating Customer.io and Braze head to head, we decided to go with Customer.io for the ease of integration, transactional messages, our mobile capabilities especially push notifications, and for the support we know we would get.
Ivar Arulaid
Marketing Operations & Automation Manager
Messaging frequency is key for our strategy. We can’t email our customers daily, so increasing frequency with a multi-channel strategy is how we can scale message volume. The conversion rates prove that strategy is working.
Ugo Iwuchukwu
Head of Marketing
Relevance and personalization are non-negotiable today! Customer.io made scaling personalization for millions of users simple. Now, we can give new users a highly personalized onboarding experience regardless of location or language.
Meli Musson
Growth marketing, Lifecycle
