Ovulation Calculator & Fertility Tracker helps you determine your fertile days of the month, so you can either achieve or avoid pregnancy. The calendar uses the date of your last period and shows the next period date, the best days to conceive a girl or a boy, your ovulation day and when you should avoid pregnancy.

To generate your ovulation calendar you should provide the following details:

- Date of the last period (on the calendar on the main tab).
- Average length of the periods (on Settings tab).
- Length of the Luteal Phase (on Settings tab or use default value).

The application works best for women with regular menstrual cycles, the average cycle length is also a valid way to predict when the ovulation should happen.

What's New

Version 9.4

Improved multi-language translation.

Ratings and Reviews

3.5 out of 5
80 Ratings
80 Ratings

It's a good app..but


I had an app before this that tracked my period days there flow when I did something and if it was safe or not as well as ovulating days but it also had a the option to add notes, track my temperature, weight, and a few other things it also had a option for birth control where it tracked the days you took it and reminded you when to take it as well as a pregnancy opinion I'd give it a full 5 stars if it added notes, birth control, and pregnancy stuff to this app I'm not as worried about temperature and weight I can put that in notes if I wanted to I switched apps thinking this would be better giving I have the full version just miss having those three options available...

I Love This Apo


I used I believe a version of this app before called M.Calendar? I loved that app then when I upgraded to iOS 11 it didn’t work anymore...all my date from like 2014 on is stuck in that app (Sigh). If I could integrate the two I would really appreciated...other than that I absolutely loved this app before & glad to find a similar version.

It's wrong


Says to be intimate days before for a boy and do it on ovulation day for a girl. That's totally wrong. Either way it's still a 50/50. Can't track your symptoms either. Need to pay b

Update: I don't know what happened to my review above. From what I remember you need to pay before you can use its features. Also just got a response from the app developer a year after my review was written. Glad I never bought this app. Much better apps out there with better customer service. Still one star! Thanks

Developer Response

Chances are definitely not 50/50. But there are several gender prediction models. You can change gender prediction method from Scientific to Popular on the Settings screen. There was no possibility to answer to reviews before.


Dmitry Kovba
41.1 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Catalan, Chinese, Dutch, French, German, Indonesian, Italian, Japanese, Korean, Malay, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
Age Rating
Rated 12+ for the following:
Infrequent/Mild Medical/Treatment Information
© 2012-2016 Dmitry Kovba
In-App Purchases
  1. Full Version $1.99


  • Family Sharing

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

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