In-app experiences that guide users to action
- 14-day free trial
- No credit card required
- Cancel anytime

The customer engagement platform trusted by 9,000+ brands
Target audiences with real-time customer data and unlimited behavioral conditions.
Contextual experiences
Launch tooltips, banners, surveys, and embedded content exactly where users need guidance.
Real-time personalization
Use behavioral data, segments, and AI decisioning to dynamically tailor every experience.
Cross-channel orchestration
Increase engagement and conversions with coordinated messaging across every customer touchpoint.
Consistency across your ecosystem
Ensure campaigns, branding, and messaging stay aligned across every mobile and web experience.
“
Customer.io is the most intuitive and robust omnichannel messaging platform I’ve ever used. They beat the competition out of the water.

Higher engagement rates
Increase in referrals
Lift in monthly revenue
Multi-channel strategy conversion
Everything you need
to build smarter customer engagement
Build in-app experiences that feel native to your product


Personalize your product without shipping code
Embed dynamic content directly inside your product experience.
- Display personalized recommendations
- Update onboarding flows instantly
- Deliver contextual experiences across web and mobile


Drive users to value sooner
Drive feature adoption with contextual onboarding experiences.
- Anchor tooltips to UI elements
- Educate users without interrupting workflows
- Trigger onboarding based on user behavior


Create better in-app messages with AI
Use AI to build, personalize, and optimize customer experiences.
- Draft messages and variants with AI
- Tailor content to each user in real time
- Surface the best-performing version automatically


Keep important messages visible, organized, and personalized
Centralize every update in one customizable inbox, with real-time segments keeping notifications relevant and on-brand.
- Surface high-priority updates first
- Deliver personalized inbox experiences to every customer
- Launch without building custom infrastructure
2.5%
lift in monthly revenue
12-15%
consistent conversion rate
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.

Additional features
Modals
Static in-app pop-ups with screen overlay.
Banners
Rectangular message displays on the top or bottom of screen.
Surveys
Collect onboarding feedback, NPS, CSAT, and customer insights in-app.
Tooltips
Guide onboarding and feature adoption with contextual UI prompts.
Carousel
Content users can swipe without dismissing your message.
Templates
Create messages from pre-built templates or start from scratch.
Dynamic content
Use Liquid and AI to personalize your messages.
A/B testing
Optimize messages and monitor performance.
Metrics
Monitor message performance with sends, opens, clicks, and fails.
Live preview
Preview experiences directly on your website before publishing.
Multi-language
Store language preferences for message localization.
Priority
Choose the order of messages sent to a person.
Tools built for modern teams
Deliver polished in-app experiences with lightweight SDKs, flexible APIs, and developer-friendly tooling.
Mobile SDKs
Purpose-built SDKs for iOS, Android,
and web applications.APIs
Move data in and out of Customer.io from your terminal,
Postman, or custom integration.CLI
Install our skill, point an agent at it,
and let it drive.MCP server
Create profiles, send, and check delivery from any
MCP-compatible environment.
Questions?
We’ve got answers.
Start guiding users to action
- 14-day free trial
- No credit card required
- Cancel anytime


