Privacy Policy — Hajiki Coin Duel

Last updated: July 3rd 2026

Developer: Devology UK

Overview

Hajiki Coin Duel is a physics-based coin-flicking game. This policy explains what data is collected, why, and how it is used. We collect the minimum data necessary to provide the game’s features.

Data We Collect

Player Name

You choose a display name during onboarding.
This name is stored locally on your device and submitted to our leaderboard service (LootLocker) to identify your scores.

Game Progress

Your XP, match winnings (in-game ¥ currency), coin set selections, and room unlock status are stored locally on your device in an encrypted file.
This data never leaves your device except as part of leaderboard submissions (score only).

Device Identifier

A device-specific identifier is used locally to generate an encryption key for your save data. This identifier is not transmitted to any server.

Leaderboard Data

Your display name and Speed Challenge score are submitted to LootLocker’s servers when you post a leaderboard entry.
This data is visible to other players on the in-game leaderboard.

Online Multiplayer Session Data

When you play online, your display name and match activity are shared with Photon (Exit Games) to facilitate the match.
No match history or gameplay data is stored on Photon servers after the session ends.

Advertising Identifier

The game offers optional Rewarded Ads (e.g. to earn in-game rewards) via Unity LevelPlay (ironSource), an ad mediation platform.
On iOS, you are prompted via Apple’s App Tracking Transparency framework to allow or deny use of your device’s advertising identifier (IDFA) for tracking. On Android, the advertising identifier (GAID) may be used similarly.
If you allow tracking, your advertising identifier may be shared with Unity LevelPlay and the third-party ad networks it mediates, to serve and measure ads, which may be personalized based on your activity across apps.
If you decline tracking, ads are still shown but are not personalized using your advertising identifier.
Rewarded Ads are entirely optional — you can play the game without ever viewing one.

Data We Do NOT Collect

We do not collect your real name, email address, or payment information directly.
We do not collect precise location data.
We do not serve advertisements on PC/desktop versions of the game.
We do not sell your data to third parties.
We do not use your advertising identifier for personalized ads unless you explicitly allow tracking when prompted.

Third-Party Services

LootLocker

Used for player sessions, leaderboards, and (in future updates) premium content entitlements.

Photon (Exit Games / PUN 2)

Used for online multiplayer matchmaking and real-time gameplay.

Unity Technologies

The game is built with the Unity game engine. Unity may collect anonymous diagnostic/crash data depending on your platform settings.

Unity LevelPlay (ironSource)

Used to mediate and serve optional Rewarded Ads. Depending on your tracking permission choice, this may involve sharing your advertising identifier with LevelPlay and the third-party ad networks it mediates.

In-App Purchases (future update)

A future update will introduce optional cosmetic in-app purchases processed through the Apple App Store or Google Play. All payment processing is handled entirely by Apple or Google — we do not receive or store your payment details.

Children

This game is not directed at children under 13. We do not knowingly collect personal information from children.

Data Retention

Local save data remains on your device until you uninstall the game or manually reset your profile. Leaderboard entries associated with your display name may be retained on LootLocker’s servers for the duration of the leaderboard’s operation.

Your Rights

You may request deletion of your leaderboard data by contacting us at the email address above. Local save data can be deleted by uninstalling the game.

Changes to This Policy

We may update this policy when new features are added. The “Last updated” date at the top will reflect any changes. Continued use of the game after changes constitutes acceptance of the updated policy.

Contact

For privacy-related questions or data deletion requests:

support@devology.uk