Over 1M users downloaded and installed the tool and the latest update was on Sep 20, 2020. Keep in mind ads and in-app purchases while launching this application. It's free to download the installation package of Calendar 2020, also, you can have a look at users' reviews on Droid Informer. The app works fine on Android 4.2 and above.
As users indicate, you can benefit from the strong sides of the app which are a nice layout and customization features. Users leave reviews saying that the main disadvantage of this application is bad ads.