The document describes PollStar, an app and system that monitors election activity at polling stations. It captures feedback from Presiding Officers through questions on an app or phone calls. Presiding Officers can download the app, register with their phone number, and respond to Yes/No or numeric questions about polling station activity and vote counts. If officers don't respond on the app, they will receive a call to answer the questions via phone keypad. They can also call back within 30 minutes if they miss the initial call. The responses are sent to servers to provide election monitoring and command information.