VantageKit

VantageKit is a document sharing platform that lets you create branded, trackable deal rooms for proposals, pitch decks, and due diligence materials. It bridges the gap between simple file-sharing tools and expensive enterprise data rooms, offering modern security controls like watermarking and download blocks alongside detailed engagement tracking.

The platform's core feature is live sync staging: connect your Google Docs, Slides, or Sheets directly, preview changes in a staging environment, then publish updates without exporting PDFs or changing URLs. It also includes per-page attention tracking and an AI assistant that acts as a deal coach. The maker says it was built with Claude Code.