Support

Need help?

We help with app support, feedback, bug reports, privacy questions and general questions. Please tell us as much as you can so we can help you quickly.

Email support

Email: [email protected]

Common help topics

App feedback

Share ideas to help us improve the gameplay, design and features.

Bug reports

Tell us what is not working, with your device model and app version.

In-app purchases

For billing or purchase problems, include your store receipt and the platform you used.

Privacy questions

Read our Privacy Policy or email us with privacy questions.

App Store or Google Play

Some account, download or refund questions need to be handled by Apple or Google.

Game ideas

Want a new ZooDoku city or animal? We love hearing from players.

Questions & answers

Is the game free?

Yes. Sudoku Offline Classic is free to download and play. It shows ads to support development.

Does it really work without internet?

Yes. Both Classic Sudoku and ZooDoku work completely offline. Ads and anonymous statistics are only sent when your phone is online.

Will I lose my progress if I close the app?

No. Your current game, statistics, streaks and animal collection are saved on your device automatically.

Which devices are supported?

iPhone and iPad (App Store) and Android phones and tablets (Google Play).

Is it good for kids?

Yes. ZooDoku's animal pictures, 3-step guide and hints that explain each move make it a great first Sudoku for children. Adults can play Classic Sudoku up to Expert level.