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Glow - Period calendar & tracker, ovulation calculator, fertility predictor

By Glow

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Take control of your reproductive health. Pinpoint your ovulation day and track your period. Glow brings its advanced proprietary algorithms and its ability to crunch vast amounts of data to women at multiple stages of their reproductive journey.

Glow can help you avoid pregnancy, prepare you for pregnancy, and of course, help you conceive right now by predicting exactly when your ovulation will occur. We also created Glow First™, the world’s first and only crowdfunding program for babies.

* Glow is FREE and will always be free
* Glow has no in-app advertising of any kind
* Unlike other period trackers, Glow will never charge you extra for our premium features

Glow and Glow First™ are the most advanced, elegant, and data-driven way to take control of your reproductive health.


* Accurately forecast your ovulation by tracking your symptoms
* Track your oncoming menstruation
* Helpful reminders and fun suggestions to help you improve your reproductive health and fertility
* Daily fertility recommendations based on your cycle day and symptoms
* Smooth and intuitive period log helps you forecast future menstrual cycles
* Personalized insights about your health based on your cycle and the data you’ve entered
* Tips and tricks to help you conceive faster
* Convenient calendar view to see your next fertile window, your ovulation day, and next menstrual cycle
* 5 day calendar view to quickly access your chance of pregnancy on any given cycle day to help you conceive with ease
* Conveniently accessible charts of your daily data, including forecasting your ovulation
* Ability to download and print your cycle data historically for your physician
* Mirror app for your partner, so that they too can track your cycle, but with their own suggestions and daily recommendations
* Enter your method of contraception and medication to get daily reminders
* Synced data entry: both you and your partner can enter the necessary data to forecast when you ovulate
* Receive support from the Glow Community and from your partner on your pregnancy journey
* Optional passcode to access app prevents others from seeing your fertility information
* Opportunity to join Glow First™, the world’s first fertility funding community


Glow First™ is Glow’s companion offering for those wanting to have a baby as soon as possible. The experience is ENTIRELY OPTIONAL. If you choose to join Glow First™ and you don’t get pregnant, you will receive:

* Access to the important data your doctor will need to assess your fertile health and menstrual cycle to help get you pregnant


* On our website at
* Through our Facebook page at
* Or on Twitter @GlowHQ

To learn more about how to use Glow, visit our FAQ Page:

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:


Glow was founded by a group of technology veterans and data scientists headed by Max Levchin (founder of PayPal)

What's New in Version 3.7.0

Glow has completely redesigned the look and functionality of your charts based on your feedback. Check them out!

Also included in this update:
- New Glow First claim process
- Like count for community replies
- Minor bug fixes

iPhone Screenshots

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Customer Reviews

The best of them all.

I've tried almost every app in this category, and this app is by far the most polished and efficient. The interface is classy and simple while also having just the right amount of features. The user community is a way better than most and I enjoy the daily polls and health tips.

It's sleek and simple, and is fronted by a discreet icon and name. It's the only app of its kind that I didn't feel was lacking or was too girly and fussy.

Best app by far for women!

I love the layout of this app and the community groups, polls, and features it offers. It's by far the best app I've ever used for women whether your trying to conceive, already pregnant or just want to track your period. Only thing I would change is if you have a missed period, you have to manually put that in. Doesn't provide the feature.

iPhone 4

This app is soo amazing and it just keeps getting better and better each time I update it. I'm 7 weeks pregnant all praise and thanks to Glow! I will continue using this app and hopefully it will still be around when I'm old haha because I'll still want to use it then. Amazing. Worth it all. Get the app if your TTC.

Glow - Period calendar & tracker, ovulation calculator, fertility predictor
View In iTunes
  • Free
  • Category: Health & Fitness
  • Updated: Jun 26, 2014
  • Version: 3.7.0
  • Size: 28.7 MB
  • Language: English
  • Seller: Glow, Inc.
Rated 12+ for the following:
  • Infrequent/Mild Medical/Treatment Information

Compatibility: Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5.

Customer Ratings

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