Open the app, tap 'New Game,' select your preferred difficulty level, then choose your input method, such as touch or keyboard, to begin playing.

Difficulty levels are set before starting a new puzzle. To change, return to the main menu, select 'New Game,' and choose your desired difficulty.

You can input answers using touch, mouse, keyboard, or pen, depending on your device and preferences—simply select your input tool before playing.

Sudoku Classic automatically offers new puzzles each time you start a game; just choose your difficulty, and the app generates a unique puzzle.

Yes, tap the 'Hints' button during gameplay to get clues or solutions, helping you progress through difficult puzzles easily.

Go to Settings > Account > Subscription to view and purchase available premium plans for extra features and unlimited puzzles.

Yes, subscriptions are available for extra features. Some free puzzles are included; check the subscription details in Settings > Account > Subscription.

Navigate to Settings > Account > Subscription, then select 'Cancel Subscription' to stop recurring payments.