This app does not show ads, do not track you, and do not sell your data. We collect only the minimum information needed to provide game features (online rankings and cloud save).
2. Information we collect
Only when you use the online ranking or cloud save features, the following is sent to and stored on an external server:
Player name (nickname) — a name you choose yourself. There is no field for your real name or contact details (we recommend not using personally identifiable information as your nickname)
Scores and play records — score, clear time, remaining lives, hint usage, stage name, and submission date
Cloud save data — your game progress, unlocked records, and settings
PIN hash — the 4-digit PIN used for save transfer is converted to an irreversible hash (SHA-256) on your device before being stored or sent. The PIN itself never leaves your device
Play-environment label — a coarse label shown on the ranking screen (e.g. "iPhone / app", "Mac / Chrome"), derived from the OS type and, on the web version only, the browser type. We do not log IP addresses in our data and do not access the advertising identifier (IDFA)
3. How we use it
To display online rankings (player name, score, play records, environment label)
To provide cloud save, so you can back up and restore progress with your name and PIN
It is never used for advertising, marketing, or cross-app/cross-site tracking.
4. Third-party service (where data is sent)
Rankings and cloud save are powered by SilentWolf (a backend service for games, https://silentwolf.com). The data in Section 3 is sent over encrypted connections (HTTPS) to SilentWolf's servers (api.silentwolf.com) and stored there, subject to SilentWolf's own privacy policy.
We do not share or sell your data to any other third party.
5. Retention and removal
Online data (rankings / cloud save): retained for as long as needed to provide the service. To stop your records from appearing on the rankings, contact us via the form above including your registered player name; we will verify the request and promptly exclude the matching records from all ranking displays (no app update required). Full deletion of the stored records on the server will be carried out progressively as part of system updates
On-device data: you can delete it at any time via "Logout" or "Reset data" in the in-game settings. It is also removed when you uninstall the app
6. Children
The apps are suitable for all ages. There are no fields for real names, addresses, or contact details; only a nickname of your choice and gameplay records are collected.
7. Changes to this policy
If data handling changes, we will update this policy and announce it on this page, updating the revision date for material changes.