Crux: Daily Logic Puzzles

A Crux puzzle gives you a few categories, such as furniture, a missing part and hours spent, and a list of clues. You mark crosses and ticks on the grid until each item is matched with exactly one item from every other category. Optional story themes turn the categories into short scenes, such as Grandma's Hidden Gems or Flat Pack Palava, so the same workout reads differently each day.

The home screen shows the date and that day's puzzles, from The Hunch, a two-category emoji grid, through Easy and Medium up to Hard and Expert, with richer clue types as the grids grow. A Red Herring mode adds fake clues and Deadline is a time trial. There are streaks, achievements, an interactive tutorial, curated puzzle packs and a Custom Builder for making and sharing your own grids. The app works offline, and the game runs in six languages: English, German, Spanish, French, Italian and Portuguese.

Crux is made by Josh Hills and came to the App Store in August 2026; the same game now also plays in a web browser at playcrux.com, on a desktop or a phone. It is free with no ads, and includes daily puzzles; a one-time Premium purchase adds the full daily archive, the Hard and Expert dailies, answer checking mid-puzzle, PDF export and more packs.

On a desktop the grid sits on the left and the story and numbered clues on the right; on a phone the clues slide up in a panel below the grid. One tap marks a cross and a second tap a tick. Today's Easy puzzle, Character Sheet Chaos, sorts the classes, pets and names of an adventuring party on a three-category grid, while the Expert grid has four categories of six.