Effective date: August 31, 2026
CardUp ("the App") is a multiplayer Guandan card game. We designed it to collect as little data as possible. This policy explains what is processed and why.
Nickname. When you join an online room you may enter a nickname. It is shown to other players in the same room, kept in server memory only for the duration of the room, and never stored permanently.
Gameplay data. Cards, moves, and room state are processed in server memory to run the game and are discarded when the room ends. We do not build player profiles.
Reconnect token. A random token is stored on your device so you can rejoin a room after a disconnect. It contains no personal information.
Server logs. Our game server temporarily records technical logs (such as IP addresses and timestamps) for security and troubleshooting. Logs rotate automatically and are not used for tracking or advertising.
Voice chat and video avatars (optional). Rooms offer optional real-time voice chat and small live camera avatars. Both run on our own media server (self-hosted, encrypted in transit); no third-party real-time service is involved. If you tap the microphone or camera button and grant the corresponding permission, your live audio or video is relayed only to the other players in the same room while you keep it enabled. Nothing is recorded or stored by us. If you never enable the microphone or camera, no audio or video is captured. The camera and microphone are off by default every time you enter a room.
The App contains no advertising, no third-party analytics or tracking SDKs, no in-app purchases, and no real-money gambling. Voice and video run on our own servers; no third-party service receives your data. We do not sell or share your information with anyone. We do not collect your name, contacts, photos, or location.
The App is a card game with no purchases and no data collection beyond what is described above. Voice chat only connects players who share the same private room code.
All traffic between the App and our servers is encrypted with TLS (HTTPS/WSS).
If this policy changes, the updated version will be posted at this address.
Questions? Email pandavmin@gmail.com.
CardUp 是一款多人掼蛋游戏,按"最少收集"原则设计:昵称仅在房间内展示、随房间结束丢弃; 牌局数据仅在服务器内存中用于对局运行;设备上仅保存一个不含个人信息的重连令牌; 服务器仅保留短期技术日志用于安全排查。房间内提供可选的实时语音与视频头像(运行在我们自己的媒体服务器上, 不经任何第三方;仅在你点击麦克风/摄像头并授权后向同房间玩家传输实时音视频,默认关闭,我们不录制、不存储任何音视频)。无广告、无第三方统计、 无内购、不涉及真钱,不出售或共享任何信息。全部通信经 TLS 加密。联系方式:pandavmin@gmail.com。