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Glow - Fertility Tracker, Ovulation & Period App

By Glow

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Glow is the world’s best ovulation calculator and fertility companion. Glow's menstrual and ovulation calculator helps women learn about their fertility, whether avoiding or attempting pregnancy. Glow is an ovulation calculator that also records your period, 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 and Misfit.
+ 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 ourney 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 5.8.1

Introducing Glow Health Findings and Premium Rewards!
With Glow Health Findings we’ve aggregated millions of data points to give you access to the largest women’s health data set in human history. With Premium Rewards, you can now save hundreds of dollars with Glow-only discounts to some of our favorite brands! Update now!

iPhone Screenshots

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Apple Watch

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Customer Reviews


I suffer from PCOS, tracking my period has been a hassle. I never know when it's coming or for how long. I found the app and gave it a try, now I can't live without login my information daily. It's right on the money when it tells me my period is about to start. I log my information daily which is great to help it know my circle. The drama is a bit annoying but I just log in and ignore the rest. Seriously if you have PCOS give this app a try it helps you out specially when you have a doctors visit but can't remember your last cycle. Just pull the app out and check it helps you it helps your partner and it specially helps your doctor knowing your logging your information and giving him or her the correct info.

Love it all but the drama

I find this app extremely useful for tracking my cycle. It is the best I've used so far and I sampled all the ones I could find.
I enjoy the community and with a background in women's health I find joy in replying to those seeking advice. With that being said there are some immature people/convos etc that go on. I simply skim by those and get involved with the threads I enjoy. You can use this app to simply track your cycle and/or use it to connect to a group of women of similar situations for advice etc. there are sub groups for nearly everything related to being a woman that you could ever imagine. Use glow to connect to your own cycle and so much more 🌸

Pretty accurate

Glow has been extremely good at predicting my periods when I went off birth control. My husband and I are still actively preventing pregnancy until we are ready for a baby, and the app has been crucial for keeping track of ovulation and the risk for pregnancy over the month. We've been avoiding high risk times (or using pullout methods during that time), and no baby yet in the 10 months I've been off birth control. I also like how you can record cramps, period flow, mood/stress levels, and body temperature to figure out your ovulation times. Pretty happy overall with the app (and I've got the free version)!

Glow - Fertility Tracker, Ovulation & Period App
View in iTunes
Offers Apple Watch App for iPhone
  • Free
  • Category: Health & Fitness
  • Updated:
  • Version: 5.8.1
  • Size: 99.5 MB
  • Apple Watch: Yes
  • Language: English
  • Seller:
Rated 12+ for the following:
  • Infrequent/Mild Medical/Treatment Information

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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Top In-App Purchases

  1. Glow Premium$47.99
  2. Glow Premium$7.99
  3. Glow Lifetime Premium$59.99
  4. Glow Credit$0.99