Sudoku Hex is made by one person. The fastest way to get help, report a bug, or ask for a feature is a direct email.
coreywu0@gmail.comPlease mention your device and iOS version if you're reporting a bug. Replies usually come within a couple of days.
Every colored region holds each digit from 1 up to its size exactly once, and so does every line along the grid's 3 straight-line directions (not just 2, like a square grid). The in-app "How to Play" screen (Home → How to Play) has a worked diagram.
A few gray cells just fill out the hexagon's outline — they're decorative, not part of any region or line, and never take a digit.
Open Profile → Delete Account. This removes your signed-in account and its cloud data (leaderboard entries, solve history). Local progress on your device is removed when you delete the app.
There's no ad-removal purchase yet. Ads only show after your first few solves, with a cooldown between them.
Yes — every mode (Daily, free play, hints, settings) works fully without an account. Signing in with Google or Apple is only needed to appear on the leaderboard and sync progress across devices.