A simple calendar with optional Google synchronization. You can easily create recurring events and setup reminders, it can also display week numbers.
Contains a resizable 4x4 widget where you can customize the color of the text, as well as the alpha and the color of the background.
Contains no ads or unnecessary permissions. It is fully opensource, provides customizable colors.
The Storage permission is needed only for exporting or importing events from .ics files.
Internet and Contacts permissions are used only at Google sync.
This app is just one piece of a bigger series of apps. You can find the rest of them at http://www.simplemobiletools.com