Sumi Cascade is an offline falling-block game with endless play and optional puzzles. You do not need an account, and the game contains no advertising, analytics service, or in-app purchases. The current game does not send personal information, gameplay records, or device identifiers to the developer or another server.
The game saves completed puzzles and your preferences for controls, sound, high contrast, reduced motion, and whether you have seen the introduction. These records are kept in the game's local app storage so they are available when you return.
The game does not provide its own cloud sync or account recovery. Your operating system may handle device backup or restoration separately, according to its settings and policies.
You can remove the game's local data through your Android device's app settings. This removes saved progress and preferences. Uninstalling normally removes local app data, although a system backup may restore it on a later installation.
If you choose to contact the developer by email, the information you include is used to respond to your request. This voluntary correspondence is separate from the offline game. Do not send passwords or payment details.
Support email: hanjon859@gmail.com
If the game's handling of information changes, this page will be updated to describe the new behavior and its effective date.