Powerful and intuitive calendar — beats Google's default calendar by miles. It comes with customisable widgets, allowing you to view calendar by month, week, and day. Widgets also to view the agenda and Google tasks.
The in-app-purchases are now currently half price.
Install the App, then swipe from the left of the screen to the right, then click on the red coloured "Go Pro" icon. Then buy the $3.02 (Complete pack)
Even without buying any of the additional features, the non-Pro calendar is plenty powerful for most users.
can we still enter calendar or appointment entries via google calendar website? i find this is very convenient, and later the apps connect to it?