Courier

Courier is a notification-creation program for app developers that offers push notifications, emails, chat, slack, and custom channels. The job it does: replacing internal email with channels and direct messages.

The natural audience is every team. Related areas on their profile: Developer APIs and Messaging. As a small product team themselves (11 to 50 people), they tend to serve customers of a similar scale best. Small vendors mean quick answers and real influence on the roadmap, but check who covers support when someone is out.

Courier is based in San Francisco, California and founded in 2019. You can read more at courier.com.

Things worth asking about: search, retention policies, and external guest access. Get the renewal terms in writing before the first invoice.

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