Customer.io - Send email based on what people do (or don't do) in your app
Pombo - Email platform for teams and AI agents
Housecat - The AI-powered inbox that automates email workflows and integrates with your tools.
Fyxer - Get ahead of your inbox with an intelligent AI email assistant.
Unitpost - Professional, inbox-safe email components & layouts for React developers.
Franz 6 - All your messaging apps in one window - with private AI
Town - The assistant that learns how you work, then gets to work.
Sortail - Self-learning one-click inbox cleanup for Apple Mail
Engineering Event-Driven Messaging at Scale: How Customer.io Processes Billions of Real-Time Triggers
InviteVia - Create beautiful digital invitations with RSVP tracking in minutes.
Petrel - Transform scattered travel bookings into smart, shareable itineraries.
TideSQL - High-performance MariaDB storage engine with advanced indexing and vector search.
GleamSync - Automate vacation rental turnover cleaning scheduling and notifications.
Knock agent for Slack - Build, manage, and ship customer messaging from Slack
