Hitori BLACKOUT Support
Need help with a puzzle, your progress, a purchase, or something that is not working as expected? Contact the developer directly.
Contact support
For a technical issue, include your device model, iOS version, app version, the screen or puzzle you were using, and the steps that led to the problem. A screenshot can help explain visual issues.
Progress and accounts
Hitori BLACKOUT does not require an account. Puzzle progress and settings are stored locally on your device. Uninstalling the app or clearing its data can remove local progress.
Privacy questions
For information about local game data, analytics, advertising, and purchases, read the Hitori BLACKOUT Privacy Policy.
Last updated: September 28, 2026