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Recommended week number calendar - Efficient Calendar

Efficient Calendar is a feature-packed, flexible and professional week number calendar that displays your daily events and reminds you of upcoming tasks. Let your brain works without any distraction if you keep all your things in order.

  • Network Edition Available
  • Multiple Interface Styles
  • Free Edition Available
  • Recognition from Authoritative Software Editors
  • Calendar and Time Manager
  • Recycle Bin
  • Security Information
  • Competitive Price

Latest Version: 5.50 Build 542
Price: $34.95
Requirements: Windows 10/8/7/XP/Vista, Android, iOS
Languages: English, Finnish, Simplified Chinese, Korean, Indonesian, Thai, Lithuanian, French, Traditional Chinese, Polish, Russian, Hungarian, Croatian, Slovenian, Italian, Bulgarian, Norwegian, Armenian, German, Farsi, Greek, Turkish, Japanese, Danish, Czech, Dutch, Spanish, Swedish, Arabic, Ukrainian, Portuguese

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Other week number calendars provided by Efficient Software

Efficient Calendar Free Free

Efficient Calendar Free combines the best and most important features that you could want in a free scheduling program. Read More...


EfficientPIM $39.95

With the help of EfficientPIM, you can get your life organized easily. Read More...


Efficient Man's Organizer $39.95

Efficient Man's Organizer is an award-winning and powerful personal organisation software product that offers users an opportunity to keep themselves organized. Read More...


Efficient Lady's Organizer $39.95

Efficient Lady's Organizer is a professional and attractive Windows 7 PIM designed for managing and organizing your life. Read More...

Choose the right application for yourself:

Efficient Man's/Lady's OrganizerEfficientPIMEfficient Calendar
More special interface styles designed for men/women
Contact Manager & Address Book
Notes Management
Adding unlimited pictures to contacts
Journal & Diary
Built-in editors similar to MS Word for writing diary entries
Customizing task labels
Adding attachments
Sounds Good?Efficient Man's/Lady's OrganizerEfficientPIMEfficient Calendar
Price$39.95$39.95$34.95
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Testimonials & Reviews

"Awesome product! The only thing it doesn't do (or if it does, I haven't discovered it yet) is sync with my iCloud account. I have to do double-entry on contacts and calendar. I absolutely love the integration. The Today format keeps me on target for the day. I would love it if this function also integrated on my iPhone, it would perfect! GREAT Product!"

- Linda, May 2013


"Works as good as Outlook! Pros: 1) My Social Security Checks are deposited the fourth Wednesday of the month. It handles this and the repetitions flawlessly. 2) It will import CSV files from Outlook. Cons: I haven't found any thus far. I do wish that one could edit the list of events to be IMPORTed. Summary: I downloaded several calendar programs, but I don't think I will install the others."

- neilhmurphy, March 2012

For Home
Efficcess
Efficient Address Book
Efficient Diary Pro
Efficient Calendar
Efficient To-Do List
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For Business
Efficcess Network
Efficient Address Book Network
Efficient Calendar Network
Efficient To-Do List Network
Efficient Reminder Network
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