M Calendar is a free Android app developed by Sunguy, belonging to the Utilities & Tools category. It is a comprehensive calendar and scheduling application that lets you manage your monthly, weekly, and daily plans systematically. The app allows you to distinguish between different types of events, making it easier to manage your schedule.

The app offers smart registration of calendar events, which recommends the event title, place, and attendees. You can choose from various repeat setting options and set smart alarms and snooze settings. The app provides a list view of days, weeks, months, and agendas, all with a convenient user interface. Additionally, the app displays the lunar date and leap month when registering or modifying events, making it a handy tool for anyone who follows the lunar calendar. The app also supports tablet devices, making it easy to manage your schedule on the go.