iPhone Screenshots

What’s New

Version 1.2

Added color-coding switch
New supported language: Russian

Ratings and Reviews

4.0 out of 5
157 Ratings

157 Ratings

Huntybooboo ,

Good app also works for not getting pregnant!

I have 3 little ones and don't want any more at moment but don't want be on birth control everyday for the next 5 years either! If your cycles are regular this app is good for helping you keep track of when you'll want to be extra careful to use back up protection. I've used the tracking ovulation to prevent pregnancy successfully for 2 years but having this app makes it much easier

Annoyed2134581618 ,

Really Not Helpful At All

I downloaded this app because it seemed more simple than the competitor's apps and I thought I would like it a lot more. I have a very irregular cycle so I learned quickly this app isn't very accurate in recording pretty much anything, and a month after I started using it you guys took the calendar function away. What good is the app if I have to scroll through every single day of the year to look at when my period started, ended, etc. I NEED an app that simpler allows me to look at a freakin' calendar overview like ALL the other apps JUST like this one do, except their apps are actually useful. I'll be writing down my data from the app, transferring it to another FREE app that offers FREE access to a FREE calendar. Thanks anyways but it seems like you as the developers have quite a bit of work to do in order to make this app something that I would even consider using again. But probably not.

NatRich_11 ,

I'm pregnant!!

I got my Paraguard IUD removed in November 2013, and began using this app to track my menstrual cycle in December 2013, which is when I learned about it. I found out on January 21, 2014, that I'm pregnant!! This app was extremely helpful for my husband and I to try to conceive and I really don't think we would've gotten pregnant this quickly if we weren't able to figure out with this app exactly when I was fertile and ovulating. I recommend this app for sure! Give it a couple of months so you can see if your cycle is regular or not, which is very helpful to figure out.


2.3 MB

Requires iOS 5.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, German, Japanese, Russian, Simplified Chinese, Spanish, Traditional Chinese

Age Rating
Rated 4+
© Nighp Software 2013
In-App Purchases
  1. OP Calendar Full Version $2.99


  • Family Sharing

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

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