When you sign into greenfield you agree to the statement “Use of this application (“App”) on a personal device is for personal convenience, entirely voluntary and not required by Target. Team members may use this App at a work location by using Target’s Wi-Fi at no cost. The same information is available on Target’s provided computers. Target is not responsible for any data charges team members may incur while using this App. Team members using the App agree to comply with the App’s Terms and Conditions and Target policies. If you have any questions, please contact your HR partner.” They make it seem like you can use it on your own.