Hanabi Tracker keeps track of your clues in the game of Hanabi, freeing you to focus on better play. This app is an utility to be used playing Hanabi; it is not an implementation of the game itself.

Features:
- Support for all multicolor rule variants
- Flexible input -- select cards then clue or clue then cards
- Optionally track negative information
- Select direction of card movement
- Annotate cards for inferred clues
- Unlimited undo to rollback mistakes

Hanabi Tracker is free of cost, free of ads, and free of intrusive permissions. I created it for my friends ... some of whom I have yet to meet.