Calendar by Anton Wolf is a free app that offers a comprehensive calendar solution for Android users. It is designed to display all possible information on the same screen, including the number of tasks, alarms programmed, and Android 3 onwards events contacts. The app offers a wide range of customization options, including the ability to change the color of the calendar, choose text size and font individually in your post-its, or disable this option in settings and use the same color and font for all post-its.

One of the unique features of the app is the ability to display icons for different events, such as birthdays, anniversaries, or general events, making it easy to keep track of important dates. The app also allows you to add multiple post-its and tasks in one day, and you can add an alarm to each task. You can easily edit, delete, or drag the position of the post-its and tasks. Additionally, the app offers two types of widgets, one with all the devices compliant visualizing for the second and the main post-it, and another type of list with all the post-its of the day for Android 3.0 and above.

Overall, Calendar by Anton Wolf is an excellent utility and tool for Android users who are looking for a feature-packed calendar app that is easy to use and highly customizable.