Glow
A fertility and ovulation tracker: period forecasts, partner sharing and community forums
4.7· 75,120 ratings on the App StoreQuick facts
- Free version
- Doesn't sell data for money
- Some data used for ads
- On-device option
- Delete your data on request
From Glow's own pages, checked . See the sources
What is Glow?
Glow is a period, ovulation and fertility tracker made mainly for those trying to conceive 🌷 It forecasts your next period and most fertile days, and sharpens those forecasts as you log temperature, ovulation tests, cervical mucus, mood and symptoms. You can invite your partner to keep their own log and follow a shared period calendar, and lean on forums and articles along the way 💞 Glow Premium, a paid subscription covering Glow, Inc.'s four apps, adds advanced charts, comparative insights, premium articles and ad-free use.
Screenshots
Screenshots from the App Store.
Who Glow is for
People who want to monitor their cycle and ovulation, particularly those trying to conceive; partners can be invited to track alongside.
What Glow does
- Forecasts of your next period and most fertile days
- Log BBT, LH tests, cervical mucus, mood and symptoms to refine predictions
- Scan Glow's own ovulation test strips with your camera; other brands are entered by hand
- Readings from the Glow basal thermometer sync automatically
- Invite your partner to log too and share a period calendar
- Discussion forums and educational articles
- A pregnancy-tracking mode
- Offline mode that keeps your logged data on your phone
Glow pricing
Prices change and differ by country. Each line shows where and when we read it.
- Free version
There is a free version.
“Yes, the Ovulation Tracker app is free to download and use. There’s also an option to upgrade to Glow Premium.”
Source: glowing.com · checked Nov 12, 2026
- Paid plan
$59.99/year, $29.99 every 3 months or $99.99 lifetime
Glow Premium, official Glow Premium page. One subscription covers all four Glow apps.
“Annual: $59.99 ($4.99/month *12 months). You will be subscribed for the whole year and the $59.99 is billed once per year. Quarterly: $29.99/3 months. You will be charged every 3 months. Lifetime: $99.99 charged once”
Source: glowing.com · checked Nov 12, 2026
Glow privacy: what the company says about your data
Taken from Glow's own published pages, with the exact passage each line rests on. This is a summary of what the company states, not an audit of what it does.
- Selling personal data
Says it does not sell personal data for money.
The policy adds that its use of cookies and tracking technologies may be considered a sale or sharing under some US state laws.
“We do not sell Personal Information for money.”
Source: glowing.com · checked Nov 12, 2026
- Advertising
Says some data is used or shared for advertising.
The policy says personalized ads can be turned off in the app settings.
“We may also share names, email addresses and device identifiers of our users with these companies to facilitate interest-based advertising to those or similar users on other online platforms.”
Source: glowing.com · checked Nov 12, 2026
- Where your data is kept
Offers a mode that keeps your data on your device.
The policy says opting in may limit some app features.
“You may opt into our “Offline Data Protection” feature. If you choose to do so, we will delete all “Key Health Data” (e.g., period data, health logs, etc.) from our servers, but leave it on your personal device.”
Source: glowing.com · checked Nov 12, 2026
- Deleting your data
You can ask the company to delete your data.
The policy says deletion is completed within one month for users in Europe and within 45 days elsewhere.
“You can ask us to delete the personal information you have provided through the Service by emailing privacy@glowing.com.”
Source: glowing.com · checked Nov 12, 2026
- Company based in
United States
Upward Labs Holdings, Inc., the company named in the privacy policy.
“We are headquartered in the United States and may use service providers that operate in other countries.”
Source: glowing.com · checked Nov 12, 2026
See how every listed app answers these questions in our app privacy data, or put Glow side by side with another app in the app privacy checker.
HerFound added this listing from public information. Facts aren't founder-confirmed yet. We don't publish ratings of our own; a star rating shown here is Apple's, linked to the App Store. Spotted something wrong? Tell us and we'll fix it. How HerFound compiles listings.
Glow: common questions
There is a free version. The paid plan is listed at $59.99/year, $29.99 every 3 months or $99.99 lifetime (Glow Premium, official Glow Premium page. One subscription covers all four Glow apps). Source: glowing.com, checked Nov 12, 2026.
Glow says it does not sell personal data for money. The policy adds that its use of cookies and tracking technologies may be considered a sale or sharing under some US state laws. On advertising, it says some data is used or shared for advertising. Source: glowing.com, checked Nov 12, 2026.
Offers a mode that keeps your data on your device. Source: glowing.com, checked Nov 12, 2026.
You can ask the company to delete your data. Source: glowing.com, checked Nov 12, 2026.
Glow is available on iOS and Android.
Alternatives to Glow
Other period and fertility trackers on HerFound. Compare all 15 Glow alternatives.
Mira
A fertility tracker: reads your hormones with the Mira monitor to find your fertile window and confirm ovulation.
Inito
A fertility monitor and app: measures four hormones at home to find your fertile window and confirm ovulation.
Spot On
A period and birth control tracker: log your cycle and never miss a dose, from Planned Parenthood Direct.
Cycles
A period tracker for iPhone: predict your periods and fertile days and share your cycle phases with a partner.