Four Stacks Privacy Policy
Last updated: September 8, 2026
Four Stacks is developed and published by StackShift Games.
Information we collect
Four Stacks does not require users to create an account and StackShift Games does not directly collect names, email addresses, phone numbers, contacts, photos, or other information entered by users.
The game uses third-party services for advertising, game monetization and in-app purchases. These services may automatically collect certain device and usage information such as IP address, device type and model, operating system and version, app version, advertising identifiers, approximate location derived from IP address, ad interactions, and technical or diagnostic information.
Advertising
Four Stacks uses Unity LevelPlay and participating advertising partners to provide advertisements, including rewarded and interstitial ads. Advertising providers may process device identifiers, advertising identifiers, IP address, device information and information about ad impressions, clicks or interactions for purposes such as delivering ads, measuring advertising performance, fraud prevention and, where permitted, personalised advertising.
Unity states that its advertising services may collect device information, IP address, advertising identifiers and information about users' interactions with advertisements. These services may also share relevant information with advertising and attribution partners.
In-app purchases
Four Stacks may offer an optional one-time “Remove Ads” purchase through Google Play Billing. Payment processing is handled by Google Play. StackShift Games does not directly receive or store users' payment-card information.
How information is used
Information processed by third-party services may be used to provide and measure advertisements, prevent fraud and abuse, maintain app functionality, process purchases, and improve service performance.
Data sharing
Information may be processed or shared with service providers involved in advertising, mediation, analytics, fraud prevention and payment processing. Unity LevelPlay may work with advertising partners and bidding partners when serving or measuring advertisements.
Data security
StackShift Games does not operate a user-account database for Four Stacks. Third-party service providers handle information according to their respective security and privacy practices.
Data retention and deletion
StackShift Games does not maintain user accounts or directly store personal user information collected through Four Stacks. Information processed by third-party providers is retained and deleted according to their respective policies and applicable law.
Children
Four Stacks is not directed specifically at children under 13.
Changes to this Privacy Policy
This Privacy Policy may be updated if Four Stacks adds or changes features, services, advertising providers or data practices.
Contact
For privacy questions relating to Four Stacks, contact:
StackShift Games
stackshiftgames@gmail.com