Privacy policy
Circuit Zero keeps campaign progress, daily streak, volts, settings, and an optional operator badge on this device. Gameplay, scores, and settings are not sent to a server. There is no account to create and no profile stored off the phone.
If you choose to save an operator badge, the app asks for photo-library access and writes that image into the app's local documents folder. The image is not uploaded. Denying the permission leaves the rest of the game unchanged. Uninstalling Circuit Zero removes the local progress and the saved badge from the device.
The app does not sell personal information and does not use the photo library for anything other than that optional badge.