Customer.io

(39)
4.0 out of 5 stars

A platform for sending targeted messages.

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Customer.io Features

Email Marketing
Email and Mobile Preview

Make sure subscribers see email as intended. View emulated inboxes of major email providers and mobile devices (e.g., iOS, Android) to resolve rendering issues.

78%
(Based on 31 reviews)
Manage Email Lists

List management tools include importing and maintaining subscriber data. Manage list segmentation, profile attribute management, and delivery status. Subscribers self-manage preferences.

76%
(Based on 32 reviews)
High-Volume Sending

Ability to send thousands of unique, personalized emails per second.

90%
(Based on 29 reviews)
Building and Personalizing Emails

81%
(Based on 33 reviews)
Sending Outbound Emails

85%
(Based on 32 reviews)
Manage Email Deliverability

84%
(Based on 32 reviews)
Automated Email Responses

n/a
Administration
Template Creation

Process for administrator to create personalized email templates from scratch or incorporate and leverage existing templates.

70%
(Based on 18 reviews)
Preset Template Availability

Quantity and quality of preset email templates for administrators to construct their own emails.

Not enough data available

Custom Unsubscribe

Able to customize the unsubscribe templates, handler, and tracking.

69%
(Based on 17 reviews)
Email Segmentation

Able to segment transactional emails based on their purpose.

91%
(Based on 18 reviews)
Detailed Server Logs

Detailed logs for tracking and debugging mail server activity.

84%
(Based on 11 reviews)
Notifications

Alerts administrator whenever a pre-set event occurs.

75%
(Based on 14 reviews)
Integrations
Webhooks

Integrates webhooks into emails to signal email status (i.e. sent, bounced, opened, etc.)

92%
(Based on 13 reviews)
Event Tracking API

API used to track the status of emails.

88%
(Based on 15 reviews)
Mail Send API

API used to send emails (e.g. Web API, SMTP API)

Not enough data available

Spam Filter Testing

Testing to ensure emails do not go to recipient's spam folder.

n/a
Platform
Custom Tracking Domain

Ability to define a custom domain from which emails are sent.

85%
(Based on 8 reviews)
Multiple Domains

Able to send emails from multiple domains.

88%
(Based on 6 reviews)
Dedicated IP

Ability to use a dedicated IP for deliverability.

Not enough data available

Documentation

Availability and quality of documentation for API, code library, implementation, and set up.

83%
(Based on 15 reviews)
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.

87%
(Based on 9 reviews)
Tracking & Reporting

Tracks emails sent and delivery rates and compiles them into standard reports.

77%
(Based on 16 reviews)
Enterprise Scalability

Provides features and infrastructure to allow scaling for large organizations.

89%
(Based on 12 reviews)
Performance and Reliability

Emails are consistently received and software performs reliably.

93%
(Based on 16 reviews)
Reporting & Analytics
A/B Testing

Run A/B tests on subject lines, areas of content (both images and text), from names, or send dates.

85%
(Based on 26 reviews)
Basic Reporting

81%
(Based on 31 reviews)
Platform
User, Role, and Access Management

Grant access to select data, features, objects, etc. based on the users, user role, groups, etc.

83%
(Based on 13 reviews)
Internationalization

n/a
Performance and Reliability

85%
(Based on 18 reviews)
Integration
Data Import & Export Tools

79%
(Based on 15 reviews)
Integration APIs

89%
(Based on 12 reviews)
Breadth of Partner Applications

75%
(Based on 12 reviews)