G2 Vendor Directory

Twilio SendGrid Email API vs. Customer.io

A side-by-side comparison based on G2 review data.

MetricTwilio SendGrid Email API

by Twilio

Customer.io

by Customer.io

Overall rating4.04.4
Review count369990
Ease of use8.58.5
Ease of setup8.48.2
Quality of support7.98.8
Meets requirements8.78.8
NPS41.89944159.487179
Small Business68.1%59.3%
Mid-Market25.6%37.4%
Enterprise6.3%3.2%
Total page views8383,321
Total LLM citations41,81129,712

Twilio SendGrid Email API

SendGrid makes it simple and stress-free to communicate with your customers. Our technology and expertise helps senders save time, scale their business, and succeed in an ever-changing email landscape. We are trusted by over 80,000 customers globally - big and small - to send over 45 billion emails every month. We help developers send with confidence by providing: FAST AND FRIENDLY INTEGRATION SendGrid's optimized integration tools and standardized API were built by developers for developers to make integrating with SendGrid a breeze.

Pros

  • Ease of Use
  • API Quality
  • User Interface
  • Deliverability
  • Easy Integrations
  • Navigation Ease

Customer.io

Customer.io is the leading customer engagement platform for product-led organizations. Engage users based on real behavior and build stronger customer relationships across email, SMS, push, in-app, and webhooks. Now with an intuitive AI agent that handles the repetitive work, your team can focus on timing, strategy, and getting more impact from every message.

Pros

  • Ease of Use
  • Automation
  • Features
  • Helpful
  • Customer Support
  • Automation Efficiency