On Sale: DigiCal+ Calendar & Widgets Now Only $0.99
I must admit Google has done a really great job with most of its apps updated for Android 4.0+. Among these there is the Calendar app that has been added a new interface supporting pinch gestures for a more detailed look on events. However some alternatives are sill more advanced.
DigiCal+ comes from developer Digibites and is about the best alternative of its kind you will find on the Play Store. For managing your events and dates the app offers a stylish interface that includes the holo elements and light / dark themes. It syncs all the events with Google Calendar and supports the tablet interface and even modern elements on Android 2.2+.
The app provides 6 powerful calendar views and 5 beautifully designed widgets in different sizes. The widgets can also be customized so that to display only the most important aspects of upcoming events. There is built-in location search to quickly add locations to your events and Google Now integration so you get informed just at the right time about an upcoming event.