Just like the real due date calculator OB wheel used by doctors!

You have seen your doctor use this kind of wheel to quickly predict your due date - now get yours inside your Mac.

- Just slide the date wheel around with your mouse or trackpad. It's that easy!
- To zoom the zodiac wheel, just click in the middle of the wheel, click again to close.

- Turn the wheel to set the date of last period or the date of conception, and you'll see at a glance the predicted due date.
- See the dates corresponding to a number of gestation weeks
- Bonus feature: predict the zodiac sign of your baby!
- The wheel will remember its last position between uses.


Date Wheels are for estimating purposes. They are not precise measuring devices and should not be relied on for exact calculations. All Date Wheels may have variations of 1-3 days in either direction.

Ratings and Reviews

Pizza or Matza ,

Very well done and very useful!

I bought this application not long ago and my wife and I love it. Some of my "doctor" friends found it to be very well done and practical. Many have bought it and now use it for telling their patients when their due dates are most likely going to be.

Zwilly1203 ,

OB wheel

Cute and easy.


Not worth the money

No point in paying for this app. I would not even call it an application. It serves no purpose. Waste of money.

App Privacy

The developer, TenTal, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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