Privacy policy
Dragon Mahjong (dragon-mahjong.com and the Android / iOS apps) · Last updated 19 September 2026 · Contact: it.team@visinemapictures.com
Dragon Mahjong is a free online Hong Kong mahjong game. We collect only what is needed to run a game table and to keep your statistics if you choose to sign in. We do not sell data and we show no advertising.
What we collect
| Data | When | Why |
|---|---|---|
| Random device id | Always, stored on your device | Keeps your seat if you reconnect and lets you rejoin a room. Guests are identified only by this id and the name you type. |
| Display name | Always | Shown to the other players at your table. |
| Account: provider id, email, name, profile picture | Only if you sign in with Google or Apple | Signs you in across devices and keeps your statistics and leaderboard entry. Apple may give us a private relay email instead of your real one. |
| Game results and statistics | Online matches | Match records (room, players, scores), hands played and won, points, time spent at the table. |
| Chat messages | If you use table chat | Delivered to players in the same room; kept only for the life of the room. |
| Voice | If you join voice chat | Audio flows directly between players' devices (WebRTC). Our relay server may forward encrypted audio when a direct connection is impossible. Nothing is recorded or stored. |
| Technical logs | Always | Connection events, errors and game events with your player id and IP address, kept for operating and securing the service. Rotated automatically. |
Permissions in the apps
- Microphone: only when you tap "Join voice". Used for live voice chat with your table.
- Internet: the game is played online.
- The apps do not access your contacts, location, photos or files. Sharing a result image uses the system share sheet.
Where data is stored
On our server in a database operated by us. Sign-in is handled by Google or Apple under their own privacy policies; we receive only the identity token and the profile fields listed above.
Your choices
- Play as a guest: no account is created and nothing beyond the device id and your chosen name is kept.
- Change your display name at any time from the home screen.
- Delete your account from the home screen (Delete account), or by email. This removes your account, sessions, statistics and your name from match records. See how to delete your account.
Chat, reports and blocking
Rooms have a text chat and an optional voice chat between the players at the table. Messages are filtered for offensive words automatically. Next to every message from another player you can report it (🚩) or block the player (🚫); blocking hides their messages and mutes their voice on your device immediately, and the list of blocked players can be managed under My Account. Reports go to the moderation team, who review them and can warn, block or remove players. You can also reach the moderation team directly at exe.andy.yo@gmail.com; we act on reports within 24 hours.
Children
The game is intended for players aged 13 and over. We do not knowingly collect data from younger children; contact us and we will delete it.
Changes
We will update this page when the policy changes and show the date above.
Kebijakan privasi (ringkasan)
Dragon Mahjong hanya mengumpulkan data yang diperlukan untuk menjalankan meja permainan: id perangkat acak dan nama tampilan untuk tamu; untuk akun Google atau Apple, id penyedia, email, nama, dan foto profil; hasil pertandingan dan statistik; pesan chat selama room ada; log teknis. Suara mengalir langsung antar perangkat dan tidak direkam. Mikrofon hanya dipakai saat Anda menekan "Gabung suara". Anda dapat menghapus akun dari halaman utama atau lewat email it.team@visinemapictures.com. Chat disaring dari kata kasar secara otomatis; setiap pesan pemain lain bisa dilaporkan (🚩) atau pemainnya diblokir (🚫) sehingga pesannya tersembunyi dan suaranya dibisukan di perangkat Anda. Laporan ditinjau tim moderasi dalam 24 jam; hubungi exe.andy.yo@gmail.com.
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