Who is responsible?
Gem Driller is developed by Gert Odendaal trading as Logic Labs, a sole proprietorship based in Centurion, South Africa. For support or privacy requests, email gertodendaal@logiclabs.co.za.
What stays on your device
- Game progress: your cash, drill and upgrade levels, stockpiled gems, workshop items, depth record, gems discovered, missions, rebirth stars and your daily-gift state. The time you last played is also saved, so the game can work out what your mining bots earned while it was closed.
- Settings: your in-game preferences, such as sound.
This is saved in the app’s private storage on your phone. It is not uploaded to Logic Labs and we cannot see it. Android app backup is switched off for the game, so progress is not copied to a cloud backup. Uninstalling the game or clearing its storage in Android settings deletes it permanently.
Ads and Google
The game is free and supported by ads from Google AdMob, delivered through the Google Mobile Ads SDK:
- Rewarded ads that you choose to watch for an in-game benefit: a doubled haul, a battery recharge, a turbo drill for your next run, free cash, a doubled daily gift or doubled offline earnings.
- Occasional full-screen ad breaks between drilling runs. They can appear after every third run from your fourth run onwards, and never twice within 90 seconds.
To show and measure ads, Google’s SDK automatically collects and shares with Google:
- your device’s IP address, which may be used to estimate your general location;
- app and ad interactions, such as app launches, taps and ad views;
- diagnostic information about the performance of the app and the SDK;
- device identifiers, such as the Android advertising ID and app set ID.
Google uses this data for advertising (including personalised ads where you allow it), analytics and fraud prevention. It is encrypted in transit. Logic Labs does not receive this data about you individually; AdMob gives us only aggregated reports such as the number of ads shown and earnings. See Google’s Mobile Ads data disclosure, how Google uses information from apps that use its services and Google’s Privacy Policy. Google may process information outside South Africa under its own policies and retention periods.
Your choices
- Consent: when the game starts it asks Google’s consent service whether a choice is needed where you live (for example in the European Economic Area, the UK and Switzerland). If it is, Google’s consent message asks for your choice before personalised ads are shown. Without consent, Google serves limited, non-personalised ads. The current build has no in-game screen for changing that choice later; clearing the game’s storage in Android settings resets it, and the message is shown again.
- Advertising ID: you can reset or delete your advertising ID, or opt out of personalised ads, in your Android privacy settings.
- Delete your game data: uninstall the game or clear its storage in Android settings. There is no Logic Labs account to delete.
- Rewarded ads are optional: you never have to watch one to keep playing.
Permissions
The game asks Android for internet and network-state access (to load ads), vibration (for haptic feedback) and the advertising ID permission (used by Google’s ads SDK). Google’s ads SDK also declares a few technical permissions of its own, such as keeping the device awake while an ad plays. The game does not access your contacts, photos, camera, microphone or precise location.
Children
Gem Driller is intended for players aged 13 and over and is not directed at children under 13. The game does not ask for or store your age. It has no accounts, chat, purchases or ways to share personal information. We do not knowingly collect personal information from children. Parents or guardians can contact us at gertodendaal@logiclabs.co.za with any question, and we will delete anything a child has sent us.
No sales, no purchases
We do not sell personal information. The current version has no in-app purchases, no player accounts, no chat and no Logic Labs analytics. Cash and gems are earned by playing or by choosing to watch a rewarded ad.
Test signup
Tester access is managed through our Logic Labs Testers Google Group, shared by all Logic Labs games. When you ask to join, Google processes your Google-account membership information. Logic Labs group owners and managers use your email address, display name and request details to approve membership and manage test access. The member list is restricted to owners and managers.
The website does not separately collect or store a signup-email list. Joining is for testing access, not consent to marketing. Google Play separately processes your test opt-in. You can leave the group and opt out of the Play test at any time. We keep active membership information until you leave or testing ends, and delete declined join requests we control after 90 days. Contact us to request removal of membership information we manage.
Support emails
If you email us, we receive your email address and whatever you choose to send, such as your phone model or screenshots, and use it only to help you. Your email provider and ours also handle these messages. We delete resolved support emails after 12 months, unless we need them for a legal obligation or an unresolved dispute.
Your rights
You can ask us about, correct or delete information you have sent us by emailing gertodendaal@logiclabs.co.za. Requests about information held by Google are handled through Google’s privacy controls. You can also raise a concern with South Africa’s Information Regulator.
This website
This website is hosted on Firebase Hosting, a Google service. When you visit it, Google may process technical information such as your IP address, requested pages and security logs under Google’s Privacy Policy. The site has no enquiry forms, accounts or advertising trackers. Email links open your email service.
Changes
We will update this policy when the game’s data practices change, for example before adding purchases or new services. The date at the top shows the latest revision.