CalenGoo - Calendar and Tasks play online

With CalenGoo you can manage all your events and tasks. With lots of configuration options you can make it look and work the way you want.

Sync all your past and future events with Google Calendar (just add your Google account under "Settings > Accounts" instead of syncing via the Android calendar).
Sync calendars with Google Calendar, Exchange, CalDAV and iCloud (via the Android calendar or directly).
Sync tasks with Google Calendar, Exchange, CalDAV and iCloud.
Attach photos and files to your events (when syncing directly with Google Calendar).
Attach Evernote notes to events.
Weather forecast ("Settings > Weather").
Add icons to Google events (you have to add your Google account under "Settings > Accounts", then you can configure the icons under "Settings > Icons").
Five types of calendar views (day, week, month, agenda and year).
Four styles of agenda views ("Settings > Display and Use > Agenda view")
Use drag&drop to move and copy your events.
Widgets to see your events on your home screen (day, week, month, agenda, year and task widget).
Support for Exchange categories (when syncing CalenGoo directly with Exchange using EWS).
Share calendars with other people (using Google Calendar).
Search function
Various reminder functions (e.g. notifications, pop-up window, spoken reminders, different sounds, ...)
Birthdays and anniversaries of your contacts
Floating events and completable events
Templates for events
Print to PDF function
Tasks in events (add a short list of tasks into an event)
Contacts can be linked to events
Use keywords to change the color or icons of your events ("Settings > Display and Use > General > Keywords").
Dark theme and light theme ("Settings > Design")
Many configuration options can be found under "Settings > Display and Use".

For more details please see here:

http://android.calengoo.com

Additionally you can add ideas or vote for ideas on https://calengoo.de/features/calengooandroid

And you can find a free 3-day trial version here: http://android.calengoo.com/trial

If you have problems just contact the support: http://android.calengoo.com/support