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Glow - Ovulation Calculator & Fertility Tracker

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, birth control and/or 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.
+ Sync with other health apps such as Jawbone, MyFitnessPal, Fitbit 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.
+ Refill your birth control prescription at Walgreens or Duane Reade.
+ 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, sleep, stress, weight, exercise, ovulation calculator and more.
+ Set medication, ovulation, contraception, and period tracker reminders.
+ Make beautiful charts of your menstrual, ovulation, and fertility data.
+ Review past periods, menstrual cycles and ovulation dates to better understand your fertility.
+ Five-day and monthly calendar views on period tracker show your next fertile window, ovulation day, upcoming period.

+ Get support from the vibrant Glow Community, unmatched by other ovulation calculators.
+ Continue your 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.

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 5.0.1

We fixed a bug related to daily log.

iPhone Screenshot

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Apple Watch

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Customer Reviews

The App Where You're Not Allowed To Have An Opinion

So ladies if you're thinking of getting this app, there are a few things I can tell you about it. This app is about a week off, all the time for my cycle. That isn't so bad and I just know that whatever it says, expect it the week before. Apps have no way of accuracy when it comes to the human body anyway.

Second thing: if you are going to use the community part, DONT! You are not allowed to express different opinions and if you do it gets taken down. There seems to be a certain group of non admin women on there and if they don't like something it immediately comes off. It's like high school and the administration on there is the nerds that will do anything to make the cheerleaders happy. I am a strongly opinionated woman who is not a part of this click, so when I post against the group you can bet that by the time I get up in the morning my thoughts are gone. Nothing about this community is helpful. Mostly they just ignore new posts and wait to attack if they can. My advice stay far away from the community section. Actually just stay away from Ruby, Glow, and Nurture all together. It's all the same app with the same piranhas in the pool.

Great App

This app was dead on with tracking my ovulation and the tips in between really helped to educate me. I love how glow anticipates that you're going to want to start testing for pregnancy tests as soon as your fertile period is done so messages pop up to tell you just wait a little longer. I also appreciate the community boards because they are up to date and you can search for almost anything and find someone with the same issues and feelings as you. Much better than running a Google search and getting outdated info or impersonal information. Glow loses one star because when you do message in the boards you loose it. It's very hard to find where you posted and the bookmark feature seems to not work at all. I found myself trying to save postings to look back at later but can never find it.

Great app but one problem!!

The app is fantastic - I would totally give it 5 stars if it weren't for this one frustrating issue:

The community section (where you can post and answer people's questions) will notify you when someone has commented or liked a post or comment of yours. When you click on this notification, it will take you to the original post that you commented on, rather than your individual comment. Good luck finding yours (to see what people commented back) when there are 1,500 other comments. You actually have to scroll through one by one to find yours to see what people wrote back! It is so frustrating. So you might never be able to read the comments/questions you received back because you don't have hours to spend looking for your post!

Once they fix this - it will be a 5⭐️ app!

Glow - Ovulation Calculator & Fertility Tracker
View In iTunes
Offers Apple Watch App for iPhone
  • Free
  • Category: Health & Fitness
  • Updated:
  • Version: 5.0.1
  • Size: 59.3 MB
  • Apple Watch: Yes
  • Languages: English, Simplified Chinese
  • Seller:
Rated 12+ for the following:
  • Infrequent/Mild Medical/Treatment Information

Compatibility: Requires iOS 7.1 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5, iPhone 6, and iPhone 6 Plus.

Customer Ratings

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