Shiftstack Privacy Policy
Effective date: July 11, 2026
This policy explains how Sloth Bloom handles information when you use Shiftstack on Android.
Information stored on your device
Shiftstack stores game settings, high scores, gameplay statistics, streaks, earned Shards, purchased or unlocked cosmetic palettes, consumables, achievement progress, a player-chosen duel display name, and other game progression locally on your device. Solo progression is not uploaded to a Sloth Bloom server. You can remove local information by clearing the app's storage or uninstalling the app.
Online duels and Firebase
If you choose an online duel feature, Shiftstack uses Google Firebase Authentication to create a persistent anonymous identifier and Google Cloud Firestore to coordinate the match. A duel document can contain the anonymous player identifiers, player-chosen display names, match code, shared random seed, matchmaking type, scores, cleared-line totals, game-over state, match status, and creation time. This information is used only to create, join, synchronize, secure, and conclude online matches. It is not used for advertising profiles. Clearing app data or uninstalling removes the local anonymous session but does not automatically delete previously completed match records from Firestore. You may request deletion by contacting Sloth Bloom below. Firebase handles service and security information under Google's Privacy Policy.
Google Play Games Services
If Google Play Games authentication is available, Shiftstack uses Google Play Games Services to submit leaderboard scores and unlock achievements. Google may process your Play Games profile, player identifier, scores, achievements, device information, and service activity under Google's Privacy Policy. Shiftstack does not use Play Games Services as a separate in-game account system and does not receive your Google password.
Advertising and rewards
Shiftstack uses Google AdMob to show an adaptive banner on the home screen and an optional rewarded ad in the Shop. Ads are not shown during active gameplay. If you voluntarily complete a rewarded ad, the reward is added to your local Shards balance. AdMob may process device identifiers, IP address, approximate location derived from IP, ad interactions, diagnostics, and consent choices to provide, measure, secure, and personalize or limit ads as permitted. See How Google uses information for advertising.
Consent and privacy choices
Shiftstack uses Google's User Messaging Platform to request and remember advertising privacy choices where required. You can reopen available controls from Settings → Privacy Choices. Your device and Google account also provide advertising and Play Games privacy controls.
Permissions and information not requested
Shiftstack uses internet access for Play Games and advertising and may use vibration for gameplay feedback. The app does not request access to your contacts, camera, microphone, precise location, photos, or files. Sloth Bloom does not sell personal information.
Retention, security, and deletion
Local game information remains until you clear app storage or uninstall Shiftstack. Online duel records may remain in Firestore for service operation, abuse prevention, and support until deleted under Sloth Bloom's retention practices or in response to a valid deletion request. Information handled independently by Google is retained and deletable according to Google's policies and the controls available in Google Play Games, your Google Account, and your device. To request deletion of duel records associated with your anonymous player, contact support@slothbloom.com. Reasonable safeguards are used, but no system can guarantee absolute security.
Children
Shiftstack is a general-audience puzzle game and is not directed specifically to children under 13. If the app's intended audience or advertising configuration changes, this policy and the relevant store declarations will be updated before release.
Changes and contact
Material changes will be posted here with a revised effective date. Privacy questions may be sent to support@slothbloom.com.