Opening the iTunes Store.If iTunes doesn't open, click the iTunes application icon in your Dock or on your Windows desktop.Progress Indicator
Opening the iBooks Store.If iBooks doesn't open, click the iBooks app in your Dock.Progress Indicator

iTunes is the world's easiest way to organize and add to your digital media collection.

We are unable to find iTunes on your computer. To download the free app Flo Period & Ovulation Tracker by OWHEALTH, INC., get iTunes now.

Already have iTunes? Click I Have iTunes to open it now.

I Have iTunes Free Download

Flo Period & Ovulation Tracker


This app is only available on the App Store for iOS devices.


Flo Period Tracker is a smart and simple way to track your cycle. Flo makes accurate and reliable predictions of menstruation and ovulation using machine learning (AI). All women, even those with irregular cycles, can rely on Flo. Log your days in a handy calendar, schedule cycle reminders, record moods and symptoms, and take full control of your health.

Wondering when you had your last period? Want to know when your next period is coming? With Flo it’s easy to keep track of your cycle.

Listen to yourself, note your mood and symptoms to understand how they influence your health.

Flo lets you:
- schedule reminders and get notifications of ovulation, menstruation, contraceptives and other pills;
- keep your cycle and symptoms history and analyze it using graphs;
- manage your lifestyle: add your daily sleep duration, water consumption, physical activity, all in one place;
- sync your data with Apple Health App;
- track basal temperature, pregnancy tests results and know your fertility days, if you are trying;
- find out more about your body and cycle – get personalized health insights every day

Tracking periods was never that easy! Download the app and join millions of women who trust their cycles to Flo.

What's New in Version 4.1.0

A new update is live now and one more is coming soon!

What’s new in this version:

- The app is adapted for iPhone X and iOS 11

We carefully read your reviews so don’t forget to write about the features you like in the app and about the things you’d like to change.


iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPhone Screenshot 5
iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4

Customer Reviews

Ongoing Glitches

I’ve been using Flo since April and we’ve still had no luck conceiving. We also use ovulation test strips, which have yet to align with Flo’s suggested ovulation dates. The app is also really glitchy for me. Sometimes if I log information one day, and then when I go back in the app the next day, my information is gone. Or even more frustrating, all of the days for the past few days have all shifted back by one day. I can tell because I travel a lot for work and I note when and where I’m flying. It all gets randomly jumbled for no reason. It’s maddening.
The most frustrating bit, though is that the app will just change my period dates or ovulation dates randomly. Even if I haven’t taken any tests or had any additional symptoms, my dates just move around. Today, for example, my ovulation dates moved from day 18 to day 19, and I’m currently on day 25 if my cycle. Why on earth is it making changes retroactively? And day 19 is clearly marked with the negative ovulation test that I took. So frustrating and unhelpful. The app is causing me more stress than if I just used pen and paper.

Love it, but could love it more if there was a few tweeks

I’ve been using Flo for a while now, and I have such an irregular period (17 yrs old), and it always gave me anxiety over when it was going to come, now I’m a lot more calm about it. Some things I would add would be an expansion on the symptoms, so we could log in at what time we got a symptom like nausea or cramps, so we could look for trends there, or with acne, I would love if I could specify where I get the most pimples so maybe they could have info as to why I break out in a certain area, so I could attribute it to stress or hormones or my diet, etc. I absolutely love the app though!
UPDATE: what happened to the surveys?? I’ve only been getting discussions, and I personally don’t like the discussions, I prefer surveys that teach me little facts.

Flo pros and cons.

An amazing application, however needs or could use a few extra options. I would like to see the option of having what your moods were happy, sad etc. also I like the idea of being able to say if I had mild, medium or heavy pains or what symptoms. Also wish you could choose if you had hot flashes or cold chills. Those are the downs of a wonderful application. I love the way it breaks down and explains your cycle and explains what you are feeling. Best app I have used so far. Let’s admit I have no clue what my body goes through or how I feel to explain. I also love the capability of logging when I had sex and my cycles to keep me prepared.

Flo Period & Ovulation Tracker
View in iTunes
Offers Apple Watch App for iPhone
  • Free
  • Category: Health & Fitness
  • Updated:
  • Version: 4.1.0
  • Size: 97.0 MB
  • Apple Watch: Yes
  • Languages: English, Danish, Finnish, French, German, Hindi, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Vietnamese
  • Seller:
Rated 12+ for the following:
  • Infrequent/Mild Medical/Treatment Information

Compatibility: Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions: