If you're looking for a simple, yet effective, calendar app, then this is the one for you. It provides you with all the basic functions that you need for scheduling, while being easy to use and free. 

You can get a quick overview of all your events by simply looking at the main screen. You can see your current event and upcoming events, as well as the day, month, year, and the time. It also has multiple views that you can use, including the day, week, month, and year views.

It has a basic event editor that lets you add and remove events, and also has a reminder function. You can set reminders for the day, week, month, and year. It also has an agenda function, which is useful if you need to plan out your day or week.