This policy applies to the idle mining rewards app DonCaDrill (package com.rewardfactory.gold, the "Service"), operated by DonggeulCompany. Effective: 2026-07-06
You can use the Service without creating an account. We collect and use the following.
| Type | Data |
|---|---|
| Collected automatically | Install identifier (an anonymous UUID generated on install), advertising identifier (AAID), device information (OS version, model), usage records (mining, harvesting, ads viewed, missions, check-ins, ranking) |
| Collected automatically | Device language setting, time zone, and SIM country |
| Optional (when you sign in) | Google account identifier, email and display name — only if you choose to sign in |
| When you request a payout | Only what is needed to pay you: your PayPal account email, or the mobile number for an airtime top-up |
We do not collect national identification numbers or similar government identifiers.
The Service uses these signals to determine which payout methods are available to you and which exchange rate applies.
We keep your information until its purpose is fulfilled or until you ask us to delete it, except where law requires longer retention. When you delete the app or request deletion, we destroy the related identifiers and usage records without undue delay.
To provide rewards and ads we share the minimum necessary information (such as advertising and event identifiers) with the following.
| Processor | Purpose |
|---|---|
| Google AdMob (Google LLC) | Rewarded, interstitial, native and banner ads, and reward verification (SSV) |
| Google Firebase (Google LLC) | Notifications, usage analytics, crash diagnostics |
| Google LLC | Google Sign-In, if you choose it |
| ayeT-Studios, CPX Research | Offerwall missions and reward crediting (S2S) |
| PayPal | Paying out to users outside Korea |
| Reloadly | Mobile airtime top-up payouts |
Partners used only for users in Korea (the domestic sign-in provider, domestic offerwalls and gift voucher issuers) are listed in the Korean version of this policy.
We otherwise do not provide your information to third parties without your consent, except where required by law.
Information whose retention period has passed, or whose purpose has been fulfilled, is destroyed without undue delay. Electronic files are deleted in a way that cannot be recovered.
We use the advertising identifier (AAID) to serve ads. You can reset it or opt out of personalised ads in your device settings.
Android: Settings > Google > Ads > Reset/Delete advertising ID
You may ask to see, correct, or delete your information. Deleting the app removes the local data on your device; to delete the data stored on our servers, use Delete account in the app or contact us below. See Account deletion for details.
Questions about your information, and deletion requests, go to:
This policy is effective from 2026-07-06. We may revise it as the law or the Service changes, and we will announce changes in the app or on this page.