Carbon Footprint Log (Footprint) does not collect any of the user's data. All data is stored directly on the user's device and is only accessible through the user's device. No input is being uploaded to any cloud, outside device, or server. The user's information such as name, email address, and any logged information is only used and stored on the user's device to present the user's name on the home screen and to present their carbon emissions. The user's data is not used anywhere other than the user's device.