Welcome to 3Doku support. 3Doku is a three-dimensional twist on classic Sudoku, played across the faces of a cube. No account, no login, no data collection — just pure puzzle solving.
✨ Key Features
3D Cube Puzzles
Sudoku wrapped across the faces of a cube. Rotate, explore, and solve.
No Account Needed
Open the app and play. No sign-up, no login, no email required.
Fully Offline
Play anywhere, anytime. No internet connection required.
Brain Training
Multiple difficulty levels to keep your logic sharp.
❓ Frequently Asked Questions
Does 3Doku collect any data about me?
No. 3Doku does not collect, transmit, or store any personal data, analytics, or telemetry. Everything stays on your device.
Do I need to create an account?
No. There is no login, sign-up, or account system. Just install the app and start solving puzzles.
Does the app need an internet connection?
No. 3Doku works fully offline. Your puzzles and progress are stored locally on your device.
How do I transfer my progress to a new device?
Because all data is stored locally and not synced, progress cannot be transferred between devices.
I found a bug or have a suggestion. How can I report it?
Please email us using the address below. We read every message.
📧 Get in Touch
Questions, suggestions, or need help? We're happy to hear from you.
Contact Support:
lars.app.development@gmail.com