Privacy Policy — Backpack Battle

Backpack Battle is a backpack auto-battler: you pack gear into a grid, then watch your hero fight. It has no accounts of its own and no server of mine that receives anything about you. This policy describes what the shipped app actually does.

What the app does not collect

The app does not ask for, receive or transmit your name, email address, phone number, precise location, contacts, photos, files, microphone or camera. It has no free-text fields.

Your progress

Your runs, backpack, unlocked classes, rating, settings and statistics are stored on your device. Uninstalling the app deletes them. Android's own backup service may copy app data to your Google account according to your device settings; I have no access to it.

Google Play Games: cloud save, leaderboards and achievements

The app never signs you in to Google Play Games on its own. Only if you tap a Play Games button in Settings does it sign in; from then on it submits your scores to its leaderboards (rating, fights won, runs won) and unlocks achievements. Google shows these under your Play Games profile; your Play Games name and avatar may be visible to other players on leaderboards according to your Play Games settings.

Cloud save is off unless you turn it on in Settings. When on, a copy of your game progress is stored in your Google account through Play Games Saved Games, so you can restore it on another phone. Restoring only ever happens when you choose it. I cannot read your saved game. Google's handling of Play Games data is governed by the Google Privacy Policy.

Advertising

The app shows ads through Google AdMob: optional rewarded videos you choose to watch (to win back a lost life or for a free shop reroll), and a full-screen ad when a whole run ends, never during a run. For this, Google receives your device's resettable advertising ID, an approximate location derived from your IP address, and information about your interaction with ads. I receive only aggregate, anonymous earnings and impression counts. Google's handling of this data is governed by the Google Privacy Policy and how Google uses information from apps.

You can reset or delete your advertising ID in Android Settings → Privacy → Ads. If you are in the EEA, the UK or Switzerland you are asked for consent before personalised ads are shown, and can change your choice any time under Settings → Privacy options in the app. Buying Remove Ads removes the end-of-run ads and gives every video reward without a video.

Analytics

The app uses Google Analytics for Firebase to understand how the game is played: events such as a run started or finished, a fight won or lost, a class unlocked, a purchase made or a video watched, with details like the class played and the round reached. Google also records the app version, device model, Android version, an approximate country and an app-instance identifier it generates. Nothing you type or identify yourself with is sent. The analytics property is linked to AdMob so that ad revenue can be measured. If you decline the ad consent choice, analytics consent is set to denied as well. I see only aggregate reports.

Purchases

Optional in-app purchases (specialisation classes, all classes, Remove Ads) are processed by Google Play. I never see your payment details. Purchase records are managed through RevenueCat, which receives an anonymous app-user identifier and the purchase receipt so that purchases can be restored; see the RevenueCat privacy policy.

Children

The app is intended for a general audience and is not directed at children under 13.

Deleting your data

Everything the app stores is on your device: uninstalling the app or clearing its storage (Android Settings → Apps → Backpack Battle → Storage → Clear storage) deletes it. If you turned on cloud save, delete the saved game in the Google Play Games app (Profile → Settings → Delete Play Games account & data, or the game's saved games). To reset your advertising ID, see Advertising above. Analytics data held by Google is aggregated and retained per Google's standard retention (14 months). For any request, email developer@uyllii.com. See also Delete your data.

Changes

If this policy changes, the new version will be posted at this address with a new date.

Credits

3D characters by Kay Lousberg (KayKit, CC0). Sound effects from Kenney and OpenGameArt contributors (CC0). Fonts: Cinzel and Alegreya Sans (SIL Open Font License).