Customer Communication Platforms

Send product, marketing, and transactional messages across email, SMS, push, chat, and in-app. Unify data, build complex workflows with AI, and ship faster with developer-first tools.

Lightweight SendGrid alternative for transactional and marketing emails. Features simple API, AI agent integration, and volume-based pricing with 98.97% deliverability.

Open-source email marketing platform for newsletters and transactional emails. Features visual MJML editor, A/B testing, contact segmentation, and real-time analytics. Self-hosted alternative to Mailchimp.

Create engaging product adoption experiences with customizable onboarding flows, feature announcements, and user engagement tools. No developer required.

All-in-one solution for customer communication, segmentation, and automation across email, SMS, push notifications, and live chat channels.

Send email, push, SMS, in-app, and chat notifications through a single API, with powerful automation and user preference management.

Novu provides a unified API for sending notifications across multiple channels, with powerful workflows and integrations.

Build multi-channel communication experiences in your apps with Engagespot's advanced notification infrastructure, including in-app messaging, email, push, and more.