--- title: Courier Reviews meta_title: 'Courier Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 59 reviews by the users' company size, role or industry to find out how Courier works for a business like yours. aggregate_rating: rating_value: 4.5 review_count: 59 scale: '5' date_modified: '2026-07-31' parent_category: name: Development url: https://www.g2.com/categories/development --- # Courier Reviews **Vendor:** Courier **Category:** [Notification Infrastructure Software](https://www.g2.com/categories/notification-infrastructure) **Average Rating:** 4.5/5.0 **Total Reviews:** 59 ## About Courier Courier is notification infrastructure for customer messaging, built for humans and AI agents. It sits between your app and every channel you send on: email, SMS, push, in-app inbox, chat, and webhooks. You send one request, and Courier works out where it goes, what it looks like, and whether the user wanted it at all. Teams use it for the messages a product has to send: onboarding, alerts, receipts, reminders, and account notices. You keep the providers you already pay for. Courier is the layer above them. • Design a message once and it adapts to each channel it goes out on, whether you build it in the visual editor or manage it as code. • Journeys handle the sequencing: waits, batching, digests, and branching on what someone does or ignores. • Add an in-app inbox to your web and mobile apps without building one from scratch. • Users set their own channel and topic preferences, so you are not fielding requests to turn things off. • When a provider fails, Courier fails over to another, and every send lands in one log with its delivery status. Everything in the product is on the API, so the same template or journey works however your team wants to build it: in the visual editor, as code, or handed to an AI agent through Courier's MCP server. Courier connects to 50+ providers, including SendGrid, Amazon SES, Twilio, Firebase, and Slack, and bills per message sent at one rate on every channel, with no per-seat fees. The free tier covers 10,000 messages a month. Twilio, Trusted Health, and Nav run their customer messages on Courier. Founded in 2019 in San Francisco, Courier came out of Y Combinator and is backed by GV, Bessemer Venture Partners, Matrix Partners, Twilio, and Slack Fund. ## Courier Pros & Cons **What users like:** - Users value the **ease of use** in Courier, particularly for creating dynamic emails effortlessly with drag and drop functionality. (2 reviews) - Users praise the **excellent customer support** of Courier, appreciating the numerous contact options for assistance. (1 reviews) - Users appreciate the **dynamic notification configuration** in Courier, enhancing user experience with customizable recipient options. (1 reviews) - Users love the **personalization features** of Courier, enabling them to easily create dynamic emails with drag and drop design. (1 reviews) - Users love the **drag and drop design** feature for creating dynamic emails effortlessly with Courier. (1 reviews) **What users dislike:** - Users express frustration over **API integration issues** , limiting connections to social media services like Instagram and Snapchat. (1 reviews) - Users find **customization difficult** , as achieving the highest level of personalization is a challenging experience. (1 reviews) - Users express concern over **integration issues** as Courier lacks options for connecting to various social media platforms. (1 reviews) - Users find **limited customization** frustrating, despite the helpful drag and drop feature of the Courier product. (1 reviews) - Users express concern over the **missing integration options** with various social media platforms, limiting functionality. (1 reviews) ## Courier Discussions - [What services do couriers provide?](https://www.g2.com/discussions/what-services-do-couriers-provide) - 2 comments - [View Courier pricing details and edition comparison](https://www.g2.com/products/courier/reviews?page=4§ion=pricing&secure%5Bexpires_at%5D=2026-08-01+14%3A25%3A16+-0500&secure%5Bsession_id%5D=f3af77fb-55e9-4fbe-b6d3-d27eac8fd21f&secure%5Btoken%5D=5a1ac0512aca70556a872ec96da17473f97f4fd263cfe897570fadb16d31a3de&format=llm_user) ## Courier Features **Administration** - Template Creation - Custom Unsubscribe - Email Segmentation - Detailed Server Logs - Notifications **Campaigns** - Customize - Scheduling - Retarget - Segmentation - Triggered Notifications **Messaging Channels** - SMS Messaging - Email **Consolidation - Notification Infrastructure** - Automation - API Integration - Template **Integrations** - Webhooks - Event Tracking API - Mail Send API - Spam Filter Testing **Analytics** - Campaign Performance - Audience Insights **Administration** - Scheduling - Triggered Notifications - Segmentation - Integrations **Customization - Notification Infrastructure** - User Preference - Analytics - Drag and Drop **Platform** - Custom Tracking Domain - Multiple Domains - Dedicated IP - Documentation - Sender Reputation Management - Tracking & Reporting - Enterprise Scalability - Performance and Reliability **Optimization** - A/B Testing - Personalization - Rich Notifications - Integrations **Agentic AI - Push Notification** - Autonomous Task Execution - Adaptive Learning - Proactive Assistance ## Top Courier Alternatives - [Knock](https://www.g2.com/products/knock-knock/reviews) - 4.6/5.0 (147 reviews) - [OneSignal](https://www.g2.com/products/onesignal/reviews) - 4.7/5.0 (1,204 reviews) - [Twilio SendGrid Email API](https://www.g2.com/products/twilio-sendgrid-email-api/reviews) - 4.0/5.0 (358 reviews)