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 366 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 336 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 365 Customer.io reviews and verified by the G2 Product R&D team. System provides sufficient customization to meet business requirements
Workflow Capability
Based on 361 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 359 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
Based on 210 Customer.io reviews. Ability to define a custom domain from which emails are sent.
Multiple Domains
As reported in 205 Customer.io reviews. Able to send emails from multiple domains.
Dedicated IP
Ability to use a dedicated IP for deliverability. This feature was mentioned in 200 Customer.io reviews.
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
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. This feature was mentioned in 218 Customer.io reviews.
Tracking & Reporting
Tracks emails sent and delivery rates and compiles them into standard reports. This feature was mentioned in 241 Customer.io reviews.
Enterprise Scalability
Based on 216 Customer.io reviews. Provides features and infrastructure to allow scaling for large organizations.
Performance and Reliability
Based on 238 Customer.io reviews. Emails are consistently received and software performs reliably.
Optimization
Based on 62 Customer.io reviews. Optimizes marketing campaigns for mobile devices.
Internationalization
Facilitates global text message and mobile marketing campaigns. This feature was mentioned in 60 Customer.io reviews.
Email Marketing (4)
Building and Personalizing Emails
Based on 411 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 394 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 368 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
As reported in 329 Customer.io reviews. 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 354 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 378 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 358 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 332 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
Data quality consists of deduplication, cleansing, and appending your marketing database. 332 reviewers of Customer.io have provided feedback on this feature.
Segmentation
Based on 372 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
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. 312 reviewers of Customer.io have provided feedback on this feature.
Lead Nurturing
Based on 332 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 327 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
Based on 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
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. 338 reviewers of Customer.io have provided feedback on this feature.
Event / Webinar Marketing
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. This feature was mentioned in 321 Customer.io reviews.
Social (1)
Social Sharing
As reported in 307 Customer.io reviews. 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 371 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
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. 323 reviewers of Customer.io have provided feedback on this feature.
Revenue Analytics
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. This feature was mentioned in 312 Customer.io reviews.
Administration (6)
Template Creation
Process for administrator to create personalized email templates from scratch or incorporate and leverage existing templates. This feature was mentioned in 266 Customer.io reviews.
Preset Template Availability
As reported in 236 Customer.io reviews. Quantity and quality of preset email templates for administrators to construct their own emails.
Custom Unsubscribe
Able to customize the unsubscribe templates, handler, and tracking. 252 reviewers of Customer.io have provided feedback on this feature.
Email Segmentation
Based on 265 Customer.io reviews. Able to segment transactional emails based on their purpose.
Detailed Server Logs
Based on 238 Customer.io reviews. Detailed logs for tracking and debugging mail server activity.
Notifications
Alerts administrator whenever a pre-set event occurs. 244 reviewers of Customer.io have provided feedback on this feature.
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
API used to send emails (e.g. Web API, SMTP API) This feature was mentioned in 205 Customer.io reviews.
Spam Filter Testing
Based on 178 Customer.io reviews. Testing to ensure emails do not go to recipient's spam folder.
Analysis (2)
Campaign Analysis
As reported in 69 Customer.io reviews. Measures impact and effectiveness of mobile marketing campaigns.
Uninstall Tracking
Measures user-level uninstall insights. This feature was mentioned in 56 Customer.io reviews.
Campaigns (10)
Proximity Marketing
Collects geo-location data on mobile users to customize relevant campaigns. This feature was mentioned in 57 Customer.io reviews.
Push Notifications
As reported in 62 Customer.io reviews. Pushes notifications or text messages to mobile devices
Bulk SMS
Based on 61 Customer.io reviews. Provides templates for mass mobile messaging campaigns
Email Campaigns
Based on 69 Customer.io reviews. Personalizes and optimizes email mobile marketing campaigns.
Audience Segmentation
As reported in 70 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
Schedule push notifications to be delivered at a specific date and time, or set an expiration for time-bound messages This feature was mentioned in 112 Customer.io reviews.
Retarget
As reported 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
As reported in 114 Customer.io reviews. Automate notifications based on user behavior
Engagement (1)
Coupons and Promotions
Based on 54 Customer.io reviews. Sends out coupons and promotions to reward and entice mobile device users.
Analytics (2)
Campaign Performance
As reported in 114 Customer.io reviews. Track and report on performance metrics and conversions
Audience Insights
Based on 105 Customer.io reviews. Report on audience demographics and engagement
Text Messaging (6)
Bulk SMS
Based on 84 Customer.io reviews. Enables users to send mass text message campaigns
Text Scheduler
Based on 80 Customer.io reviews. 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
Sends out multimedia via text messages, such as coupons, pictures, and audio 77 reviewers of Customer.io have provided feedback on this feature.
Personalization
As reported in 87 Customer.io reviews. 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
Uses external data sources to improve customer profiles. 93 reviewers of Customer.io have provided feedback on this feature.
Expandability
Based on 95 Customer.io reviews. Can be updated to accept new sources and types of data.
Content Marketing
Based on 97 Customer.io reviews. Can act as a content marketing platform.
Multiple Devices
Can engage with customers across any device with a consistent message. This feature was mentioned in 95 Customer.io reviews.
Intelligence (3)
Marketing Metrics
Provides analysis of marketing program ROI and efficiency. 91 reviewers of Customer.io have provided feedback on this feature.
Predictive Modeling
Predicts outcomes based on statistical models; can give insight to "what-if" scenarios. 88 reviewers of Customer.io have provided feedback on this feature.
Recommendation Engine
Uses artificial intelligence to provide suggestions based on desired outcomes. 87 reviewers of Customer.io have provided feedback on this feature.
Optimization (4)
A/B Testing
Based on 112 Customer.io reviews. Test variations of a push notification on a portion of users and track conversions
Personalization
Personalize messages with contextual data such as customer names or product recommendations 114 reviewers of Customer.io have provided feedback on this feature.
Rich Notifications
Enhance messages with images, emojis, animated gifs, or videos This feature was mentioned in 110 Customer.io reviews.
Integrations
Integrate with third-party marketing or e-commerce software This feature was mentioned in 112 Customer.io reviews.
SMS Platform (6)
Reporting
Based on 82 Customer.io reviews. Provides pre-built or customizable performance reports
Automation
As reported in 85 Customer.io reviews. Automates tasks and features for added convenience
White Label
Based on 73 Customer.io reviews. Offers a white labeling service for agencies or resellers to customize platform branding
Text-to-Landline
Text enables landline phones so users can receive text messages sent to an existing business number This feature was mentioned in 71 Customer.io reviews.
Short Codes
Provides businesses with 5- to 6-digit short codes for running text marketing campaigns 71 reviewers of Customer.io have provided feedback on this feature.
API Integration
Facilitates the integration of text messaging into existing business applications through an SMS gateway API This feature was mentioned in 83 Customer.io reviews.
Agentic AI - Push Notification (3)
Autonomous Task Execution
Capability to perform complex tasks without constant human input This feature was mentioned in 14 Customer.io reviews.
Adaptive Learning
As reported in 14 Customer.io reviews. Improves performance based on feedback and experience
Proactive Assistance
Based on 14 Customer.io reviews. Anticipates needs and offers suggestions without prompting
Agentic AI - Personalization (6)
Autonomous Task Execution
Capability to perform complex tasks without constant human input 32 reviewers of Customer.io have provided feedback on this feature.
Cross-system Integration
Based on 33 Customer.io reviews. Works across multiple software systems or databases
Adaptive Learning
As reported in 32 Customer.io reviews. Improves performance based on feedback and experience
Natural Language Interaction
Engages in human-like conversation for task delegation 32 reviewers of Customer.io have provided feedback on this feature.
Proactive Assistance
Anticipates needs and offers suggestions without prompting 32 reviewers of Customer.io have provided feedback on this feature.
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
Based on 17 Customer.io reviews. Capability to perform complex tasks without constant human input
Multi-step Planning
Ability to break down and plan multi-step processes This feature was mentioned in 17 Customer.io reviews.
Cross-system Integration
Works across multiple software systems or databases This feature was mentioned in 17 Customer.io reviews.
Natural Language Interaction
Based on 17 Customer.io reviews. Engages in human-like conversation for task delegation
Proactive Assistance
Based on 17 Customer.io reviews. Anticipates needs and offers suggestions without prompting
Decision Making
Makes informed choices based on available data and objectives This feature was mentioned in 18 Customer.io reviews.
Agentic AI - Marketing Automation (6)
Autonomous Task Execution
Capability to perform complex tasks without constant human input This feature was mentioned in 66 Customer.io reviews.
Multi-step Planning
As reported in 67 Customer.io reviews. Ability to break down and plan multi-step processes
Cross-system Integration
Works across multiple software systems or databases 62 reviewers of Customer.io have provided feedback on this feature.
Adaptive Learning
As reported in 64 Customer.io reviews. Improves performance based on feedback and experience
Proactive Assistance
Based on 63 Customer.io reviews. Anticipates needs and offers suggestions without prompting
Decision Making
Makes informed choices based on available data and objectives 65 reviewers of Customer.io have provided feedback on this feature.
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.
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.
What are webhooks and why are they useful? Our G2 guide can help you understand webhooks and their use cases.





