Redstrings by Solutions Cay is detective board software for mapping a story, a world, an investigation, or a complicated idea.
Pin cards to a large visual board. Connect them with labeled strings. Add notes, sources, tags, and confidence so the reason for each relationship stays close to the work.
BUILD THE BOARD YOU NEED
• Plan a story across characters, scenes, clues, and reveals
• Keep factions, places, events, and lore connected while a world grows
• Break a dense idea or system into parts and name how they affect one another
• Map research, evidence, people, and competing claims
• Let a supported AI client add or update cards through the MCP server in Pro, then inspect the result on the board
FREE MAPPING TOOLS
• Unlimited boards, cards, and strings
• Seven built-in card types: Person, Team, Artifact, Process, Place, Event, and Note
• Free-text labels, direction, notes, sources, and Confirmed, Suspected, or Uncertain confidence on strings
• Search, filters, keyboard navigation, decorations, and undo/redo
• Export a project, a PNG image, or a Markdown report
• Dark theme
LOCAL FILES, NO REDSTRINGS ACCOUNT
Boards live in files on your Mac. Redstrings has no cloud account and no cloud sync. The app works offline except when you choose an online AI feature.
PRO: $19.99, ONE TIME
• Four extra themes: Cork Board, Midnight, Noir, and Blueprint
• Custom card types, icons, and colors
• Custom relationship types
• Gemini analysis with your own API key and saved reports
• MCP server for supported AI clients
There is no subscription. Pro is purchased through the Mac App Store.