A free program for Android, by Any.do.

Calendar App – Google Calendar, Calendar Widget is an all-in-one app for creating and scheduling events. It can also manage your tasks, to-do lists, and reminders. With this app, you can create events for anything and everything that you want to do or that you need to remember. All you need to do is choose a date and time and choose the type of event you want to schedule. After that, you can add the details of the event. You can also add a description and a title for the event. Once you’re done adding all the details, you can schedule the event.

It is a free app, and it is simple to use. You don’t need to create an account to use it. You don’t need to give your email address or phone number. You don’t need to log in.

The app has an interface that is easy to understand.