Built-in puzzles work offline. Here are the checks for the most common questions.
A clue is not matching
Every clue must match its entire line. Select a cell to see the clues that cross it, or open All Clues. The searchable Regex Reference explains the supported patterns. Turn on Clue status symbols in Settings if you prefer symbols alongside color feedback.
Progress is not syncing
- Apple: use the same Apple Account on both devices and check that iCloud and the app's iCloud access are enabled. Reopen RegHex with a working network connection; updates are not always immediate.
- Android: use a device with Google Play services, open Settings → Sync now, and grant access to RegHex's app-data folder. Automatic sync runs on launch and after a solve when enabled.
Apple and Android do not sync with each other. Apple custom puzzles can sync through iCloud; Android custom definitions travel through share codes. If sync fails, keep your local progress and retry when the service is available.
A share code will not import
Copy the complete code beginning with reghex1:. RegHex rejects damaged codes and unsupported patterns. The editor supports one clue per line and hex grids up to edge 3; saved puzzles can be deleted and recreated, but not edited in place.
Remove your data
Use Settings to reset progress and My Puzzles to delete custom puzzles. Android offers a separate Delete Drive backup action. Disabling automatic sync alone does not remove an existing backup. Other Android devices with sync enabled can recreate Drive backups from their local progress; disable sync and reset progress on each device when removing it everywhere. See the privacy policy for platform-specific deletion and revocation steps.
Report a problem
Include your device model, operating system, RegHex version, the puzzle name or screen, steps to reproduce the issue, and what you expected. A screenshot can help; remove personal information first. Never send passwords or authorization tokens.
mihail.duchev@icloud.com