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Courier

Read 10 Courier reviews and testimonials from customers, explore 16 case studies and customer success stories, and watch customer videos to see why companies chose Courier as their Transactional Messaging Software

Courier is the fastest way to add multi-channel notifications to your web, desktop, or mobile app.With one API call, you can reach your users on any channel – email, SMS, push, chat, and more. Trusted by innovative startups like Lattice, LaunchDarkly, LTSE, Bluecrew, and Blissfully. Backed by Y Combinator, Bessemer Venture Partners, Matrix Partners, Twilio, and Slack Fund.

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Customer Rating Review Score based on 1227 reference ratings
4.8/5.0 (1227)
  • Fall 2026 Rising Star Push Notification Software

10Testimonials

  • “We've been using Courier for over a year now, and it's probably saved us more pain (and time!) than any other single platform that we use.”

  • “With Courier, we can manage every notification, for every user, across every channel, in one easy-to-use platform.”

  • “There are very few products we’re using that I’m so excited about."

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16 Case Studies

  • CircleCI scales multi-channel developer notifications with Courier

  • Trusted Health streamlines product notifications with Courier across email, SMS, and in-app

  • Fluint creates production-ready notification templates in minutes with Courier

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Additional Courier Information & Resources

Read Courier Reviews, Testimonials & Customer References from 10 real Courier customers.

Browse Courier Case Studies, Customer Success Stories, & Customer References from 16 businesses that use Courier.