Smooth Calendar is a highly configurable and easy-to-use calendar widget available for Android devices. It is an excellent tool for users who need to keep track of upcoming events and appointments. The app is designed to work with sync providers on your phone, such as Google Calendar, Exchange, Facebook, and more.

One of the best things about Smooth Calendar is its customization options. You can easily adapt the widget to match the look of your device by changing the color, font style, icon, and more. Additionally, the widget can display any number of upcoming events, making it easy to keep track of your schedule.

It is essential to note that Smooth Calendar is a widget, and you need to add it to your home screen as indicated in the thank you message. If you purchase the premium version and the features don't unlock, restarting your device should fix the issue. It is vital to avoid giving the app a low rating and stating in the comments that it doesn't work when it is just a misunderstanding of how to use the widget.