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Glow Ovulation, Period Tracker

By Glow

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


Glow is the world’s best ovulation app and fertility tracker. Glow's menstrual and ovulation calculator helps women learn about their fertility, whether avoiding or attempting pregnancy. Glow is also a period tracker that records your mood, symptoms, sex, and medications; it also predicts your fertility and assists those undergoing fertility treatments like IVF or IUI.

Winner of 2014 Webby for best Health & Fitness app, Glow is an elegant, data-driven ovulation calculator & fertility tracker designed to help you take control of your reproductive health.

+ Innovative ovulation calculator and fertility charts, powered by sophisticated data analysis.
+ Forecast your ovulation and upcoming period with period tracker predictions that get smarter over time.
+ Community and partner support, not found on other ovulation calculators.
+ Personalized reproductive health and fertility insights based on your ovulation, period timing, and menstrual cycle.
+ Reminders about medications, and other contraception.

+ Email yourself a PDF of your ovulation results and other health data.
+ Sync your health profile (including fertility data and ovulation days) to the cloud.
+ Integrate key fertility data with Apple's Health app.
+ Sync with other health apps such as Jawbone, MyFitnessPal.
+ Fertility treatment support for IVF or IUI patients.
+ Partnership with leading fertility clinics such as Boston IVF, Shady Grove Fertility and RMA NY.
+ More than an ovulation calculator—the only period tracking and fertility companion that focuses on overall women’s health.

+ Daily health log helps you record over 40 different health signals, including BBT, cervical mucus, ovulation calculator and more.
+ Set medication, ovulation, contraception, and period tracker reminders.
+ Make charts of your menstrual, ovulation, and fertility data.
+ Review past periods, menstrual cycles and ovulation dates to better understand fertility.
+ Five-day and monthly calendar views on period tracker show next fertile window, ovulation day, upcoming period.

+ Get support from the vibrant Glow Community, unmatched by other ovulation calculators.
+ Continue journey on Glow Nurture, Glow’s Pregnancy app.
+ Mirror app for your partner--because fertility's a team sport!

Glow First is for those wanting to have a baby as soon as possible. If you choose to join and don’t get pregnant, you will receive funds to help cover the cost of your infertility screening.

Glow is free to download and use. Should you choose to upgrade to Glow Premium, you will unlock the following features:
- Comparative Insights: "Is this normal?" Compare with millions of women
- Premium Articles - Next level fertility facts
- Private messaging: Find friends . Glow together.
- Custom profile: Stand out from the rest.
- Premium support: Jump the queue!

$7.99 for month-to-month
$3.99/month for 1 year
$59.99 for lifetime
(subscription works across all Glow company apps!)

Payment will be charged to your credit card through your iTunes account at confirmation of purchase. Subscription renews automatically unless cancelled at least 24 hours prior to the end of the subscription period. There is no increase in price when renewing.

Subscriptions can be managed and auto-renew turned off in Account Settings in iTunes after purchase. Once purchased, refunds will not be provided for any unused portion of the term.

For full Privacy Policy and our Terms of Service:

Web -
Facebook -
Twitter - @GlowHQ
Instagram - @GlowHQ
Pinterest - @GlowHQ

If you are having technical issues or have any questions about your cycle or period, we're here to help. Please send us an email to:

What's New in Version 6.8.1

Yikes! Is your Glow crashing? Don’t fret! It’s just due to a little bug in iOS 11. To fix things, simply upgrade to the latest Glow and the latest iOS version (11.2+) on your phone and then everything will be as right as rain. Thanks, superstar!


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Customer Reviews

Excellent app until now...

I have been using this app for almost a year to track my period and ovulation. It has been a GREAT resource and tracking app until now. I purchased the iPhone X and when I attempted to log into my account, the app wouldn’t load. I contacted them via their email and after following a few suggested actions- I am still waiting for my information to be recovered.

I have removed the app from my old phone, logged out, deleted and re loaded the app, turned my phone off and on, updated my iOS, Re synched my account....and still nothing. My information still exists but my period tracker and ovulation is on some default.

I have emailed their customer service yet again in hopes they will resolve this issue sooner than later! I am at their mercy as I trusted this app with my information and never kept another record.
If they resolve this major glitch, I again would recommend this site but recommend you keep a backup log.

Update: as of today they have recovered my logs! I must say their customer service was always in contact with me and luckily were able to restore my account. I hope to those of you this is happening to reach out and give them a chance.

I like it

I have had this app for a long time. The predictions were quite accurate. It has served me well. Until the latest update. Now all it does is crash every time I open it. I uninstalled the app and then reinstalled to see if that would fix the problem. Nope. No change. Now the app is completely useless.
I am on an iPhone 6s.

EDIT** The bug has been fixed and my app is now back in working order. I can now resume my tracking...

Love I️t

Love everything about it as well as it’s features but thus app as well as Eve (also recommended you download) keeps freezing and a lot of glitches. Also when my phone keep restarting on and off on its own I️ deleted these two apps & the restarting stopped! Please fix I️ really want to install these apps again !!☹️😫

Glow Ovulation, Period Tracker
View in iTunes
This app is designed for both iPhone and iPad
Offers Apple Watch App for iPhone
  • Free
  • Category: Health & Fitness
  • Updated:
  • Version: 6.8.1
  • Size: 121 MB
  • Apple Watch: Yes
  • Language: English
  • Seller:
Rated 12+ for the following:
  • Infrequent/Mild Medical/Treatment Information

Compatibility: Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. Glow Premium$47.99
  2. Go Glow Period, Fertility Pro$7.99
  3. Glow Lifetime Premium$59.99
  4. Glow Credit$0.99