Novu Alternatives

Courier is a notification API built for developers. Design once, and deliver to any channel – email, Slack, SMS, push, and more – all through a single API.

Power your product notifications with Segment and Hightouch.

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.

Try for free Open Source freemium

Single Notification API for Every Channel (SMS, Slack, Whatsapp, Email, SMS, Push, App Inbox)

Open Source freemium $99.0 / Monthly

Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.

Open Source freemium $9.0 / Monthly (Plus usage-based costs. (Growth Plan). )

Send all your notifications (email, SMS, slack, chat…) and make sure that they’re delivered. Create, send and monitor easily with Sweego for developers.

freemium €29.0 / Monthly

Automate Cold Outreach Across Email, Linkedin and Twitter.

paid Free Trial $30.0 / Monthly

Raven is a central platform to orchestrate & track your product's transactional messages across multiple channels like Email, SMS, Push, WhatsApp & more.

Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.

Learn why more developers choose SendGrid for their email deliverability service to send transactional emails triggered by web apps. Get started for free

Fully managed pub/sub messaging for microservices, distributed systems, and serverless applications

Add notifications to any software in 5 minutes.

freemium $199.0 / Monthly (200,000 emails, in-app, and push notifications per month)

Next-generation sharing platform built on top of OpenZiti

Open Source

Deploy applications and the infrastructure to support them