Customer.io Features
Integration (3)
Data Import & Export Tools
Based on 373 Customer.io reviews and verified by the G2 Product R&D team.
Ability to input, modify and extract data from the application in bulk through a structured file.
Integration APIs
Based on 370 Customer.io reviews and verified by the G2 Product R&D team.
Application Programming Interface - Specification for how the application communicates with other software. API's typically enable integration of data, logic, objects, etc with other software applications.
Breadth of Partner Applications
Based on 337 Customer.io reviews and verified by the G2 Product R&D team.
To what extent are there partner applications readily available for integrating into this product? Partner applications typically provide complementary, best of breed functionality not offered natively in this product.
Platform (17)
Customization
Based on 370 Customer.io reviews and verified by the G2 Product R&D team.
System provides sufficient customization to meet business requirements
Workflow Capability
Based on 367 Customer.io reviews and verified by the G2 Product R&D team.
Automates a process that requires a series of steps that typically require intervention by a several different users. Administrators can write rules to determine who and when a user needs to complete a step. Also includes notification of users when they need to take action.
User, Role, and Access Management
Based on 359 Customer.io reviews and verified by the G2 Product R&D team.
Grant access to select data, features, objects, etc. based on the users, user role, groups, etc.
Internationalization
Based on 330 Customer.io reviews and verified by the G2 Product R&D team.
Enables users to view and transact business with the same content in multiple languages and currencies.
Sandbox / Test Environments
Based on 348 Customer.io reviews and verified by the G2 Product R&D team.
Allows administrators to easily develop and test changes to the CRM deployment. After changes are made admins can easily migrate the changes into the "live" or "production" environment.
Performance and Reliability
Based on 360 Customer.io reviews and verified by the G2 Product R&D team.
Software is consistently available (uptime) and allows users to complete tasks quickly because they are not waiting for the software to respond to an action they took.
Output Document Generation
Based on 313 Customer.io reviews and verified by the G2 Product R&D team.
Allows administrators to create templates that enable users to quickly generate dynamic documents in various formats based on the data stored in the application.
Custom Tracking Domain
As reported in 210 Customer.io reviews.
Ability to define a custom domain from which emails are sent.
Multiple Domains
Based on 205 Customer.io reviews.
Able to send emails from multiple domains.
Dedicated IP
200 reviewers of Customer.io have provided feedback on this feature.
Ability to use a dedicated IP for deliverability.
Documentation
Based on 240 Customer.io reviews and verified by the G2 Product R&D team.
Availability and quality of documentation for API, code library, implementation, and set up.
Sender Reputation Management
218 reviewers of Customer.io have provided feedback on this feature.
Ability for the platform to manage individual domain reputations. That way, senders with good sending practices are not penalized based on the sending practices of others.
Tracking & Reporting
This feature was mentioned in 242 Customer.io reviews.
Tracks emails sent and delivery rates and compiles them into standard reports.
Enterprise Scalability
As reported in 217 Customer.io reviews.
Provides features and infrastructure to allow scaling for large organizations.
Performance and Reliability
239 reviewers of Customer.io have provided feedback on this feature.
Emails are consistently received and software performs reliably.
Optimization
62 reviewers of Customer.io have provided feedback on this feature.
Optimizes marketing campaigns for mobile devices.
Internationalization
This feature was mentioned in 60 Customer.io reviews.
Facilitates global text message and mobile marketing campaigns.
Email Marketing (4)
Building and Personalizing Emails
Based on 417 Customer.io reviews and verified by the G2 Product R&D team.
Create and design emails with an editor; manage templates; personalize dynamically
Sending Outbound Emails
Based on 400 Customer.io reviews and verified by the G2 Product R&D team.
Create targeted lists, schedule and manage bulk email sending.
Manage Email Deliverability
Based on 389 Customer.io reviews and verified by the G2 Product R&D team.
Ensure inbox delivery. Includes opt-in management, bounce handling, unsubscribe processing, suppression lists, email preview, spam checking, link validation, and delivery monitoring.
Automated Email Responses
Based on 372 Customer.io reviews and verified by the G2 Product R&D team.
Set up automated nurturing emails based on events, online activities, and lead scores
Online Marketing (4)
Landing Pages and Forms
330 reviewers of Customer.io have provided feedback on this feature.
Build customized landing pages and lead capture forms for specific marketing campaigns to maximize conversion and to capture the right qualifying information.
Dynamic Content
Based on 355 Customer.io reviews and verified by the G2 Product R&D team.
Dynamically customize emails, forms, and landing pages for specific segments of customers and prospects.
A/B Testing
Based on 380 Customer.io reviews and verified by the G2 Product R&D team.
Test alternate versions of emails, landing pages, and forms. Learn what works, maximize response rates, and increase conversion.
Mobile Optimized
Based on 359 Customer.io reviews and verified by the G2 Product R&D team.
Support mobile-optimized emails, online forms, and landing pages.
Lead Management (8)
Marketing Lead Database
Based on 333 Customer.io reviews and verified by the G2 Product R&D team.
A marketing lead database is the system of record for your most important marketing asset: your leads and contacts. Includes a view of all marketing interactions between each prospect and your company, including website visits, email clicks, scoring changes, and data updates/history.
Data Quality Management
332 reviewers of Customer.io have provided feedback on this feature.
Data quality consists of deduplication, cleansing, and appending your marketing database.
Segmentation
Based on 378 Customer.io reviews and verified by the G2 Product R&D team.
Segment your database and build list of target leads and contacts. Filter on demographic and company attributes (title, company size, location) as well as behavioral filters and CRM information.
Lead Scoring and Grading
312 reviewers of Customer.io have provided feedback on this feature.
Automatically qualify and score leads based on demographics as well as prospect online behaviors, including recency and frequency. Assign your own weights to determine lead scores for prioritization.
Lead Nurturing
Based on 333 Customer.io reviews and verified by the G2 Product R&D team.
Automate drip marketing campaigns that send relevant messages over time, based on prospect behaviors and pre-defined campaign steps.
Online Behavior Tracking
Based on 329 Customer.io reviews and verified by the G2 Product R&D team.
Track which emails a prospect opens and clicks, what web-pages they visit, what keywords they use, even what they say on social networks.
Automated Alerts and Tasks
As reported in 316 Customer.io reviews.
Create tasks automatically and provide real-time sales alerts over email, RSS or mobile device.
CRM Lead Integration
Based on 323 Customer.io reviews and verified by the G2 Product R&D team.
Sync lead, contact, account, and opportunity information with your CRM system.
Campaign Management (2)
Program Management
339 reviewers of Customer.io have provided feedback on this feature.
Manage marketing campaigns and programs across multiple channels, including online ads, video campaigns, mobile, virtual events, and social media. Create and optimize program assets such as landing pages, emails, campaigns, and lists. Track program objectives, results, and costs to assess the program ROI.
Event / Webinar Marketing
Based on 321 Customer.io reviews.
Streamline the entire event process, including personalized invitations, registration, reminders, and post-event follow-up. Integrate with online meeting tools like WebEx, Adobe Connect, GoToWebinar.
Social (1)
Social Sharing
307 reviewers of Customer.io have provided feedback on this feature.
Add intelligent social share buttons to your campaigns and content. Track who is sharing your content and driving conversions.
Reporting & Analytics (4)
Basic Reporting
Based on 375 Customer.io reviews and verified by the G2 Product R&D team.
Access pre-built and custom reports and dashboards to measure leads by source/campaign/month, email performance, landing page performance, and web and social activity. Create report subscriptions that can automatically send updates to your team and executives.
Web Analytics
Based on 333 Customer.io reviews and verified by the G2 Product R&D team.
Track which pages prospects and customers visit and how often they come back. Capture the history in database for lead scoring and sales intelligence. Use anonymous company look-up to identify anonymous visitors. Send alerts to sales reps of which of their prospects and customers web activity.
ROI Analytics
323 reviewers of Customer.io have provided feedback on this feature.
Measure leads, prospects generated, pipeline, revenue, investment, and ROI by marketing channel or program. The result is that you can see which marketing investments are generating the greatest return and get visibility into how marketing budget should be allocated going forward.
Revenue Analytics
This feature was mentioned in 312 Customer.io reviews.
Analyze how leads flow through the funnel by measuring stage to stage conversion rates and velocity. Allocate pipeline and revenue credit among all the marketing activities that have successfully touched an opportunity as it moves through the pipeline.
Administration (6)
Template Creation
266 reviewers of Customer.io have provided feedback on this feature.
Process for administrator to create personalized email templates from scratch or incorporate and leverage existing templates.
Preset Template Availability
236 reviewers of Customer.io have provided feedback on this feature.
Quantity and quality of preset email templates for administrators to construct their own emails.
Custom Unsubscribe
252 reviewers of Customer.io have provided feedback on this feature.
Able to customize the unsubscribe templates, handler, and tracking.
Email Segmentation
This feature was mentioned in 266 Customer.io reviews.
Able to segment transactional emails based on their purpose.
Detailed Server Logs
238 reviewers of Customer.io have provided feedback on this feature.
Detailed logs for tracking and debugging mail server activity.
Notifications
As reported in 244 Customer.io reviews.
Alerts administrator whenever a pre-set event occurs.
Integrations (4)
Webhooks
As reported in 237 Customer.io reviews.
Integrates webhooks into emails to signal email status (i.e. sent, bounced, opened, etc.)
Event Tracking API
Based on 241 Customer.io reviews.
API used to track the status of emails.
Mail Send API
As reported in 206 Customer.io reviews.
API used to send emails (e.g. Web API, SMTP API)
Spam Filter Testing
178 reviewers of Customer.io have provided feedback on this feature.
Testing to ensure emails do not go to recipient's spam folder.
Analysis (2)
Campaign Analysis
Based on 69 Customer.io reviews.
Measures impact and effectiveness of mobile marketing campaigns.
Uninstall Tracking
56 reviewers of Customer.io have provided feedback on this feature.
Measures user-level uninstall insights.
Campaigns (10)
Proximity Marketing
Based on 57 Customer.io reviews.
Collects geo-location data on mobile users to customize relevant campaigns.
Push Notifications
63 reviewers of Customer.io have provided feedback on this feature.
Pushes notifications or text messages to mobile devices
Bulk SMS
Based on 62 Customer.io reviews.
Provides templates for mass mobile messaging campaigns
Email Campaigns
69 reviewers of Customer.io have provided feedback on this feature.
Personalizes and optimizes email mobile marketing campaigns.
Audience Segmentation
Based on 71 Customer.io reviews.
Identifies the most granular audience segments based on actions, inactions, and user properties.
Customize
As reported in 115 Customer.io reviews.
Allow users to customize their messages.
Scheduling
Based on 112 Customer.io reviews.
Schedule push notifications to be delivered at a specific date and time, or set an expiration for time-bound messages
Retarget
This feature was mentioned in 107 Customer.io reviews.
Retarget your messages based on previous user engagement.
Segmentation
As reported in 120 Customer.io reviews.
Segment audience based on device type, location, demographics, customer behavior, etc.
Triggered Notifications
114 reviewers of Customer.io have provided feedback on this feature.
Automate notifications based on user behavior
Engagement (1)
Coupons and Promotions
As reported in 54 Customer.io reviews.
Sends out coupons and promotions to reward and entice mobile device users.
Analytics (2)
Campaign Performance
115 reviewers of Customer.io have provided feedback on this feature.
Track and report on performance metrics and conversions
Audience Insights
105 reviewers of Customer.io have provided feedback on this feature.
Report on audience demographics and engagement
Text Messaging (6)
Bulk SMS
This feature was mentioned in 84 Customer.io reviews.
Enables users to send mass text message campaigns
Text Scheduler
80 reviewers of Customer.io have provided feedback on this feature.
Provides the ability to schedule single or bulk text messages to recipients on a specific date and time
Automatic URL Shortening
As reported in 75 Customer.io reviews.
Provides automatic URL shortening to use less characters via text
MMS Marketing
As reported in 77 Customer.io reviews.
Sends out multimedia via text messages, such as coupons, pictures, and audio
Personalization
87 reviewers of Customer.io have provided feedback on this feature.
Offers features for personalizing text messages based on customer information or past behavior
Transactional SMS
As reported in 79 Customer.io reviews.
Allows users to establish automated workflows and triggers to deliver transactional text messages
Data Sourcing (4)
Data Enrichment
As reported in 93 Customer.io reviews.
Uses external data sources to improve customer profiles.
Expandability
Based on 95 Customer.io reviews.
Can be updated to accept new sources and types of data.
Content Marketing
As reported in 97 Customer.io reviews.
Can act as a content marketing platform.
Multiple Devices
95 reviewers of Customer.io have provided feedback on this feature.
Can engage with customers across any device with a consistent message.
Intelligence (3)
Marketing Metrics
This feature was mentioned in 91 Customer.io reviews.
Provides analysis of marketing program ROI and efficiency.
Predictive Modeling
Based on 88 Customer.io reviews.
Predicts outcomes based on statistical models; can give insight to "what-if" scenarios.
Recommendation Engine
As reported in 87 Customer.io reviews.
Uses artificial intelligence to provide suggestions based on desired outcomes.
Optimization (4)
A/B Testing
This feature was mentioned in 112 Customer.io reviews.
Test variations of a push notification on a portion of users and track conversions
Personalization
Based on 114 Customer.io reviews.
Personalize messages with contextual data such as customer names or product recommendations
Rich Notifications
As reported in 110 Customer.io reviews.
Enhance messages with images, emojis, animated gifs, or videos
Integrations
112 reviewers of Customer.io have provided feedback on this feature.
Integrate with third-party marketing or e-commerce software
SMS Platform (6)
Reporting
Based on 82 Customer.io reviews.
Provides pre-built or customizable performance reports
Automation
This feature was mentioned in 85 Customer.io reviews.
Automates tasks and features for added convenience
White Label
This feature was mentioned in 73 Customer.io reviews.
Offers a white labeling service for agencies or resellers to customize platform branding
Text-to-Landline
Based on 71 Customer.io reviews.
Text enables landline phones so users can receive text messages sent to an existing business number
Short Codes
As reported in 71 Customer.io reviews.
Provides businesses with 5- to 6-digit short codes for running text marketing campaigns
API Integration
83 reviewers of Customer.io have provided feedback on this feature.
Facilitates the integration of text messaging into existing business applications through an SMS gateway API
Agentic AI - Push Notification (3)
Autonomous Task Execution
This feature was mentioned in 14 Customer.io reviews.
Capability to perform complex tasks without constant human input
Adaptive Learning
This feature was mentioned in 14 Customer.io reviews.
Improves performance based on feedback and experience
Proactive Assistance
14 reviewers of Customer.io have provided feedback on this feature.
Anticipates needs and offers suggestions without prompting
Agentic AI - Personalization (6)
Autonomous Task Execution
Based on 32 Customer.io reviews.
Capability to perform complex tasks without constant human input
Cross-system Integration
Based on 33 Customer.io reviews.
Works across multiple software systems or databases
Adaptive Learning
32 reviewers of Customer.io have provided feedback on this feature.
Improves performance based on feedback and experience
Natural Language Interaction
As reported in 32 Customer.io reviews.
Engages in human-like conversation for task delegation
Proactive Assistance
As reported in 32 Customer.io reviews.
Anticipates needs and offers suggestions without prompting
Decision Making
As reported in 33 Customer.io reviews.
Makes informed choices based on available data and objectives
Agentic AI - SMS Marketing (6)
Autonomous Task Execution
As reported in 17 Customer.io reviews.
Capability to perform complex tasks without constant human input
Multi-step Planning
Based on 17 Customer.io reviews.
Ability to break down and plan multi-step processes
Cross-system Integration
Based on 17 Customer.io reviews.
Works across multiple software systems or databases
Natural Language Interaction
Based on 17 Customer.io reviews.
Engages in human-like conversation for task delegation
Proactive Assistance
As reported in 17 Customer.io reviews.
Anticipates needs and offers suggestions without prompting
Decision Making
This feature was mentioned in 18 Customer.io reviews.
Makes informed choices based on available data and objectives
Agentic AI - Marketing Automation (6)
Autonomous Task Execution
This feature was mentioned in 66 Customer.io reviews.
Capability to perform complex tasks without constant human input
Multi-step Planning
67 reviewers of Customer.io have provided feedback on this feature.
Ability to break down and plan multi-step processes
Cross-system Integration
62 reviewers of Customer.io have provided feedback on this feature.
Works across multiple software systems or databases
Adaptive Learning
As reported in 64 Customer.io reviews.
Improves performance based on feedback and experience
Proactive Assistance
63 reviewers of Customer.io have provided feedback on this feature.
Anticipates needs and offers suggestions without prompting
Decision Making
This feature was mentioned in 66 Customer.io reviews.
Makes informed choices based on available data and objectives
Agentic AI - Mobile Marketing (6)
Autonomous Task Execution
Capability to perform complex tasks without constant human input
Multi-step Planning
Ability to break down and plan multi-step processes
Cross-system Integration
Works across multiple software systems or databases
Adaptive Learning
Improves performance based on feedback and experience
Proactive Assistance
Anticipates needs and offers suggestions without prompting
Decision Making
Makes informed choices based on available data and objectives
Technology Glossary Features
View definitions of the features and discover new technology terms.
Email segmentation is the process of segregating a contact database to create email segments with shared and similar characteristics. Learn more about email segmentation, best practices, and how email marketers can perform email segmentation.
What is dedicated IP and how does it help organizations? Our G2 guide can help you understand dedicated IP and the benefits it offers.
What are webhooks and why are they useful? Our G2 guide can help you understand webhooks and their use cases.
Program management is a crucial part of all organizations. Learn more about program management, how it differs from project management, the responsibilities of a program manager, and more.





