Smart Muster is a lightweight mobile application designed for attendance and leave management on Android devices. It offers a range of features that allow users to easily mark their attendance remotely, view their in/out status, and access their attendance history for the last 90 days via a calendar interface. Additionally, users can apply for leave, check their profile, and receive reminders for shifts, making it a comprehensive tool for managing work schedules.

The application also provides functionalities for modifying or inserting missing attendance records, submitting late requests, and applying for shift changes. Smart Muster supports multiple languages, including Hindi, Marathi, and English, catering to a diverse user base. However, it requires a GPS sensor with high accuracy settings and a registered mobile number with the ETAM platform for login, ensuring that it is tailored for users within specific organizational frameworks.