--- 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: '2026-08-09' parent\_category: name: Development url: https://www.g2.com/categories/development --- # Courier Reviews & Product Details Claimed ###### Profile Status This profile is currently managed by Courier but has limited features. Are you part of the Courier team? [Upgrade your plan](https://sell.g2.com) to enhance your branding and engage with visitors to your profile! 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. * * * Seller [Courier](https://www.g2.com/sellers/courier) Discussions [Courier Community](https://www.g2.com/products/courier/discuss) Languages Supported English Solution Type All-in-One Overview by Thomas Schiavone (CEO @ Courier) Show More ## Pricing Pricing provided by Courier. ### Developer $0.00 ### Pro Pay As You Go [ View More Pricing Information ](https://www.g2.com/products/courier/pricing) ## Top-Rated Alternatives [ ![Knock](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Knock") Knock 4.6/5(147) ](https://www.g2.com/products/knock-knock/reviews) [ ![OneSignal](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "OneSignal") OneSignal 4.7/5(1,228) ](https://www.g2.com/products/onesignal/reviews) [ ![Twilio SendGrid Email API](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Twilio SendGrid Email API") Twilio SendGrid Email API 4/5(368) ](https://www.g2.com/products/twilio-sendgrid-email-api/reviews) [ View All Alternatives ](https://www.g2.com/products/courier/competitors/alternatives) ## User Insights Average based on 59 real user reviews. Implementation Time 1 month Perceived Cost $$$$$ [Log in to unlock pricing and user insights](/login) ## Questions about Courier? Ask real users or explore answers from the community Get practical answers, real workflows, and honest pros and cons from the G2 community or share your insights. [ Ask about Courier ](https://www.g2.com/products/courier/discussions/new) GU Guest User • Last activity almost 2 years ago What services do couriers provide? 0 Upvotes 2 [ Join the conversation ](https://www.g2.com/discussions/what-services-do-couriers-provide) [ View all Discussions ](https://www.g2.com/products/courier/discuss) ## Pricing Options Pricing provided by Courier. ### Developer $0.00 ### Pro Pay As You Go ### Enterprise Contact Us [ View More Pricing Information ](https://www.g2.com/products/courier/pricing) Courier Comparisons ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_01102c606d7f7856a116830aca46182e/knock-knock.png "Product Avatar Image") Knock 4.6/5(147) [ Compare Now ](https://www.g2.com/compare/courier-vs-knock-knock) ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_71577b0678d3ce4ff66cd7045e79f465/twilio-sendgrid-email-api.jpg "Product Avatar Image") Twilio SendGrid Email API 4/5(368) [ Compare Now ](https://www.g2.com/compare/courier-vs-twilio-sendgrid-email-api) ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_9e6d9338f250174ed915e718b8144e5a/braze.jpg "Product Avatar Image") Braze 4.5/5(1,689) [ Compare Now ](https://www.g2.com/compare/braze-vs-courier) ##### ##### Courier Features Administration Template Creation Custom Unsubscribe Email Segmentation Integrations Event Tracking API Mail Send API Platform Custom Tracking Domain Documentation Tracking & Reporting Optimization Personalization Rich Notifications [ View More Features ](https://www.g2.com/products/courier/features) ##### Categories on G2 [Transactional Email](https://www.g2.com/categories/transactional-email)[Push Notification](https://www.g2.com/categories/push-notification)[Proactive Notification](https://www.g2.com/categories/proactive-notification) [Transactional Email](https://www.g2.com/categories/transactional-email)[Push Notification](https://www.g2.com/categories/push-notification)[Proactive Notification](https://www.g2.com/categories/proactive-notification)[Notification Infrastructure](https://www.g2.com/categories/notification-infrastructure) [Show MoreShow Less](javascript:void(0);) ##### Explore More [Best user testing tool for new apps](https://www.g2.com/discussions/best-user-testing-tool-for-new-apps)[What is the best all-in-one event lead retrieval and lead scoring software for a B2B team doing multiple trade shows and wanting to prioritize follow-up automatically?](https://www.g2.com/discussions/what-is-the-best-all-in-one-event-lead-retrieval-and-lead-scoring-software-for-a-b2b-team-doing-multiple-trade-shows-and-wanting-to-prioritize-follow-up-automatically)[Which vendors have the most reliable cloud edge security for protecting customer data at the edge where breaches at distributed locations are the top risk?](https://www.g2.com/discussions/which-vendors-have-the-most-reliable-cloud-edge-security-for-protecting-customer-data-at-the-edge-where-breaches-at-distributed-locations-are-the-top-risk) [Which co-browsing platforms integrate with leading CRM systems to automatically log session transcripts into customer records, for an enterprise contact center?](https://www.g2.com/discussions/which-co-browsing-platforms-integrate-with-leading-crm-systems-to-automatically-log-session-transcripts-into-customer-records-for-an-enterprise-contact-center)[Which webinar app has the highest reviews](https://www.g2.com/discussions/which-webinar-app-has-the-highest-reviews)[Pros and Cons Details](https://www.g2.com/products/courier/reviews?qs=pros-and-cons) [Show MoreShow Less](javascript:void(0);)