Knock is a product and customer messaging infrastructure. You can use Knock to power all of your product's messaging needs, including transactional messaging, lifecycle marketing, one-time announcements, and in-product messaging, without the effort of building and maintaining your own in-house messaging system.
Knock is made with engineering, product, growth, and operations teams in mind. It's easy for developers to implement, and simple for less-technical users to maintain in our dashboard.
Exploring options beyond Knock? Try Loops for polished SaaS email, or Novu if you want open‑source notification rails. Need pay‑as‑you‑go APIs? AhaSend is fast. For cross‑channel journeys, consider Customer.io or OneSignal.