RegHex: Regex Crosswords
Match patterns. Solve the grid
Free · In‑App Purchases
Every clue is a pattern. Every cell is a deduction. Solve rectangular and hexagonal regex crosswords, learn as you play, and find your next aha moment.
Every clue is a pattern. Every cell is a deduction.
RegHex turns regular expressions into crosswords. Fill the grid so every row, column, or hexagonal axis matches its clues. Start with a guided tutorial, build your confidence, and work up to expert puzzles that need several clues to fit together.
200 VERIFIED PUZZLES
Explore 5 tutorial puzzles, 30 easy, 30 medium, 30 hard, 25 expert, and an 80-puzzle daily rotation. Every built-in puzzle has exactly one solution. Revisit recent daily challenges in the playable 30-day archive.
RECTANGLES AND ROTATING HEXAGONS
Play familiar rectangular grids or hexagonal boards with clues along three axes. Rotate hex boards in 120-degree steps to see a new angle. The selected-cell clue bar keeps the relevant patterns close at hand.
LEARN AS YOU PLAY
Live checking shows satisfied and violated clues. Prefer a sterner challenge? Turn off red feedback and keep only the green matches. Search the built-in regex reference for examples of character classes, repetition, groups, alternation, and backreferences.
MAKE AND SHARE YOUR OWN
Create rectangular or hexagonal puzzles in the editor. RegHex checks that each creation has one unique solution before you save it. Share a compact text code through your chosen apps, or paste a code to import a puzzle.
BUILT FOR APPLE DEVICES
Enjoy touch controls on iPhone and iPad, with keyboard-first play and menu commands on Mac. Track best times, statistics, daily streaks, and 12 local achievements. Optional iCloud sync keeps progress and custom puzzles available across your Apple devices using the same Apple Account.
PLAY OFFLINE
All built-in puzzles are included. No advertising, developer-run analytics, subscription, or RegHex account. Cloud sync uses your private iCloud storage.
For developers, students, and puzzle lovers who enjoy thinking in patterns.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Solve with candidate notes, undo/redo and checkpoints. Tap clues for explanations and use progressive hints. Find puzzles with search, filters, favorites and Continue. Choose Mini, Standard or Challenge daily sessions and explore a year of archives. Generate practice puzzles, edit saved creations and share challenge links. Track assisted and unassisted attempts. Thirty original autumn dailies arrive from 1 November. All 421 bundled puzzles and every feature remain free.
The developer, MIHAIL PLAMENOV DUCHEV, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- MIHAIL PLAMENOV DUCHEV
- Size
- 4.1 MB
- Category
- Puzzle
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English and Bulgarian
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Large tip $3.99
- Medium tip $2.99
- Small tip $0.99
- Copyright
- © 2026 Mihail Duchev
