Flo vs Glow: Period Tracking or TTC Focus? (2026)
Flo suits you if you want general cycle tracking with community and pregnancy tools; Glow suits you if trying to conceive is why you track. Both have documented privacy histories, laid out below with dates and sources as of October 2026. Veya, our app, suits people who want mood, sleep and nutrition tracked alongside their cycle.
Full Transparency
This comparison is published by Holland Neurotech Inc., the company behind Veya. We've included Veya as a third option where relevant. We've done our best to compare Flo and Glow fairly based on each app's published features, pricing, and public record. If Flo or Glow is the better fit for you, use it.
Quick Answer
Flo and Glow answer different reasons for opening a cycle app. Flo is the broader option for general cycle and symptom tracking; its App Store listing claims over 570 million downloads worldwide (as of July 2026). Glow is the narrower option aimed at trying to conceive, with separate Pregnancy and Baby trackers. If you want cycle tracking folded into a broader health picture, Veya is worth a look. Here's how they compare:
- If you want general cycle tracking with a broad toolset: Go with Flo. Per its listing: a 24/7 Health Assistant, Secret Chats and in-depth pregnancy features, all Premium.
- If trying to conceive is specifically why you're tracking: Go with Glow. Its site describes an Ovulation Tracker for people trying to conceive, plus Pregnancy and Baby trackers.
- If you want cycle, mood, sleep, and nutrition tracking in one free app: Try Veya.
Flo and Glow get compared a lot, but they're not really solving the same problem. Flo is built for general cycle tracking, with pregnancy tools for after conception. Glow starts from the opposite direction: its site describes an Ovulation Tracker for people trying to conceive, with separate apps for pregnancy and baby tracking.
Both apps also have documented privacy histories worth knowing before you hand over reproductive health data. We'll lay out what you get with each, walk through both privacy records plainly with dates, and cover a third option built around a different premise entirely.
The Short Version
If you're in a rush, here's the quick breakdown:
| Flo | Glow | Veya | |
|---|---|---|---|
| Best for | General cycle tracking, feature depth | Trying to conceive (TTC) | All-in-one health tracking |
| Platform | iOS + Android | iOS + Android | iOS only (+ web app) |
| Active users | 570M+ downloads claimed (App Store, Jul 2026) | Not stated on its site | Smaller, newer app |
| Free tier | Core cycle tracking | Check each app | Most features, no ads |
| Premium price | Up to $59.99/year (App Store) | $59.99/year after 7-day trial | ~$49.99/year |
| Privacy | FTC/class action + 2025 verdict history | 2020 CA AG settlement + 2024 data exposure | Strong, no ads |
Want more detail? Keep reading.
Flo: What You Get
Flo is a general cycle-health app. Its App Store listing claims over 570 million downloads worldwide (as of July 2026) and describes period tracking, pregnancy tools, Secret Chats and a 24/7 Health Assistant.
Features
- Cycle tracking with AI-powered predictions
- AI Health Assistant that checks in on symptoms like cramps, fatigue, and mood
- Ovulation and fertile-window predictions
- An article library with expert-reviewed content, per Flo
- Secret Chats: anonymous community discussions across a wide range of topics
- Pregnancy mode for after conception; in-depth pregnancy features are Premium
- Partner sharing for joint tracking
Strengths
It covers the whole arc, not just TTC. Flo tracks general cycle health, fertility windows, and pregnancy in the same app, so you're not switching apps as your reason for tracking changes.
Community and content. Secret Chats put you in anonymous discussions, and the App Store listing lists the 24/7 Health Assistant and Secret Chats under Premium.
Pregnancy tools. The listing describes a pregnancy mode with checklists and guidance after conception; in-depth pregnancy features are listed under Premium.
Limitations
Privacy is the big concern. The FTC announced a proposed settlement with Flo Health on January 13, 2021, alleging it shared health data from millions of users with third parties including Facebook's and Google's analytics divisions, AppsFlyer and Flurry despite privacy promises; the final order came June 22, 2021. A related $59.5 million class settlement (Google $48 million, Flo $8 million, Flurry $3.5 million) received preliminary approval in April 2026, with a final approval hearing on October 29, 2026 (HIPAA Journal). Meta did not settle: a federal jury found on August 4, 2025 that Meta violated the California Invasion of Privacy Act, with damages to be decided separately (PPC Land). Flo has since added Anonymous Mode, rolled out to all users in 2022, and open-sourced it in 2023 (Flo Health press page).
TTC isn't the primary design. Fertility prediction and conception content exist, but Flo isn't organized around TTC the way Glow is. Some users trying to conceive want an app built around that specific goal.
Narrower scope. The App Store listing describes cycle, pregnancy and wellbeing tools and does not mention meal, habit or sleep logging.
Pricing
Free: Core cycle-tracking tools. Premium adds the Health Assistant, Secret Chats and in-depth pregnancy features.
Flo Premium: Flo's App Store listing lists Premium purchases up to $59.99 (as of October 2026), with lower-priced tiers also listed. Check current pricing in-app, as it can shift with promotions.
Download: Available on iOS and Android
Glow: What You Get
Glow's site describes four apps: an Ovulation Tracker, a Pregnancy Tracker, a Baby Tracker, and a Period Tracker (Eve). The Ovulation Tracker is aimed at people trying to conceive or wanting to understand their cycle.
Features
- Ovulation Tracker for cycle and ovulation tracking, including for trying to conceive
- Pregnancy Tracker with due-date calculation and a baby registry
- Baby Tracker for sleep, diapers, and feeding
- Period Tracker (Eve), which also supports sexual wellness
- GlowGPT health assistant, advanced analytics and ad-free use (Premium)
- Separate apps for each stage, so tracking moves with you
Strengths
Built around trying to conceive. Glow's site describes its Ovulation Tracker for people trying to conceive, with separate Pregnancy and Baby trackers for later stages.
Premium adds AI and analytics. Glow Premium includes the GlowGPT assistant, advanced analytics with comparisons to similar users, premium articles and a daily health plan.
Continuity across life stages. Because Pregnancy and Baby trackers are separate apps from the same company, you can move between them as your stage changes.
Limitations
Two documented privacy incidents. California's Attorney General settled with Glow, Inc. in September 2020 with a $250,000 civil penalty. The WilmerHale summary says Partner Connect granted account-linking requests without authorization or confirmation from the user whose data would be shared, and that password-change requests were not adequately verified. Glow agreed to get affirmative consent before disclosing user data to third parties and to run annual privacy and security risk assessments. A TechCrunch report of February 13, 2024 said a bug in Glow's API exposed names, self-reported age group, location, user IDs and profile images for around 25 million users, and that the researcher said it was fixed about a week after reporting.
More apps to manage. Glow splits its tools across four separate apps, which suits some people and feels fragmented to others.
Aimed at one stage. If you stop trying to conceive, you may move to Glow's pregnancy or period apps or to a different tracker.
Pricing
Free: Glow's site does not spell out which features are free, so check each app.
Glow Premium: $59.99/year after a 7-day free trial, per Glow's site (as of October 2026). Check current pricing in-app, as it can shift with promotions.
Download: Available on iOS and Android
The Third Option: Veya
If neither Flo's general-cycle-plus-everything approach nor Glow's TTC-first approach is quite what you're after, and what you actually want is your cycle tracked alongside the rest of your health, that's where Veya fits in. It's a newer app built around one idea: instead of being a cycle tracker with a few extras, it tracks your whole health picture, cycle included, in one place.
What It Adds
- Cycle tracking with automatic phase detection and fertility predictions
- LH test logging, so ovulation confirmation isn't limited to calendar guesses
- Mood, sleep, fitness, and nutrition tracking built in, 350+ metrics total
- 1-click logging for fast daily tracking
- Correlation insights showing how your lifestyle connects to your cycle
- Available on iOS and as a web app
- No ads, no data selling
Honest Limitations
- No dedicated TTC community. Veya doesn't have a dedicated TTC community or Flo's Secret Chats. It's focused on your own data.
- iOS only. There's no Android app. A web app is available for other platforms, but the full experience is iPhone-only right now.
- Smaller, newer app. It doesn't have Flo's large user base or Glow's history. Fewer reviews, a shorter track record.
- AI features are premium. Advanced insights require a subscription (~$9.99/month or ~$49.99/year).
Pricing
Free: Cycle, mood, sleep, fitness, and nutrition tracking. No ads.
Premium: ~$9.99/month or ~$49.99/year for AI features and advanced insights.
Download: Available on iOS App Store
Side-by-Side Feature Comparison
Here's every major feature compared across all three apps. Check marks mean the feature is included, locks mean it requires a paid subscription, warning signs mean it's limited, and X marks mean it's not available.
| Feature | Flo | Glow | Veya |
|---|---|---|---|
| Cycle tracking | ✅ | ✅ | ✅ |
| Fertility-window prediction | ✅ | ✅ Core focus | ✅ |
| LH test logging | Not listed | Not listed | ✅ |
| Pregnancy mode | ✅ Mode listed; in-depth features Premium | ⚠️ Separate Pregnancy Tracker app | ✅ |
| TTC-specific community | Not compared here | Not compared here | ❌ |
| AI assistant | 🔒 Paid | 🔒 Paid (GlowGPT) | 🔒 Paid |
| Sleep / activity tracking | Not listed | Not listed | ✅ Full logging |
| Nutrition tracking | Not listed | Not listed | ✅ |
| Content library | ✅ Article library | ⚠️ Premium articles | ⚠️ Limited |
| Privacy practices | ⚠️ FTC/class action + 2025 verdict | ⚠️ 2020 CA settlement + 2024 exposure | ✅ No ads, no data selling |
| Free tier quality | ⚠️ Core cycle tracking | ⚠️ Check each app | ✅ Generous, no ads |
| Price (annual) | Up to $59.99/yr | $59.99/yr | ~$49.99/yr |
Should You Choose Flo, Glow, or Veya?
There's no single "best" app here. It comes down to what you're actually tracking for right now. Here's the honest breakdown:
Choose Flo if:
- You want general cycle tracking that also handles fertility and pregnancy when you get there
- An article library and anonymous community matter to you
- You want pregnancy tools available for after conception
- You need Android support
- You're comfortable with Flo's privacy history (or willing to use Anonymous Mode)
Choose Glow if:
- Trying to conceive is specifically why you're tracking, right now
- You want an app aimed at trying to conceive
- You like separate Pregnancy and Baby trackers for later stages
- You're comfortable moving between Glow's app family as your stage changes
- You've read Glow's current privacy policy and are comfortable with its history
Choose Veya if:
- You want cycle, mood, sleep, fitness, and nutrition tracking in one app
- LH test logging matters to you without a dedicated TTC app
- You want a generous free tier with no ads
- You're on iOS (or okay using the web app on other platforms)
- A TTC community isn't why you open a tracker
What Does Each App's Privacy Record Actually Show?
Cycle and fertility data is sensitive, and both apps have a documented history worth reading before you commit. Here's the factual record for each, with dates.
Flo: FTC Settlement, Then a 2025 Verdict
The FTC announced a proposed settlement with Flo Health on January 13, 2021, alleging it shared health data from millions of users with third parties including Facebook's and Google's analytics divisions, AppsFlyer and Flurry despite privacy promises; the final order came June 22, 2021. A related $59.5 million class settlement (Google $48 million, Flo $8 million, Flurry $3.5 million) received preliminary approval in April 2026, with a final approval hearing on October 29, 2026 (HIPAA Journal). Meta did not settle: a federal jury found on August 4, 2025 that Meta violated the California Invasion of Privacy Act, with damages to be decided separately (PPC Land).
Flo has since added Anonymous Mode, which lets users use the app without a name, email or technical identifiers tied to their health data, rolled out in 2022 and open-sourced in 2023 (Flo Health press page). These are real changes, made after years of public scrutiny. Whether that history changes your decision is a personal call.
Glow: A 2020 Consent Flaw, Then a 2024 Data Exposure
California's Attorney General settled with Glow, Inc. in September 2020 with a $250,000 civil penalty. The WilmerHale summary says Partner Connect granted account-linking requests without authorization or confirmation from the user whose data would be shared, and that password-change requests were not adequately verified. Glow agreed to get affirmative consent before disclosing user data to third parties and to run annual privacy and security risk assessments.
A TechCrunch report of February 13, 2024 said a bug in Glow's API exposed names, self-reported age group, location, user IDs and profile images for around 25 million users, and that the researcher said it was fixed about a week after reporting. The coverage does not list health-tracking entries among the exposed data.
To Glow's credit, the settlement required affirmative consent before sharing data, and the 2024 bug was reportedly fixed about a week after it was reported. Whether two separate incidents four years apart changes your decision is a personal call, and it's worth reading Glow's current privacy policy yourself.
Veya: Privacy-Focused, Smaller Scale
Veya doesn't run ads and doesn't sell user data. That said, it's a newer, smaller company without the years of public scrutiny that Flo or Glow have been through, and there's no GDPR certification since it's a US-based company. The no-ads, no-data-selling approach is a meaningful commitment, but it hasn't been tested by the same level of outside review.
Frequently Asked Questions
Is Flo or Glow better for trying to conceive?
Glow's site describes an Ovulation Tracker for people trying to conceive, with separate Pregnancy and Baby trackers for later stages. Flo also offers ovulation and fertile-window predictions, but it is a general cycle tracker first. If a conception-first design matters most to you, Glow is the closer fit; if you want one app for general cycle and symptom tracking too, Flo covers that more broadly.
Is Glow safe to use? What happened with Glow's data?
Glow has two documented privacy incidents worth knowing. California's Attorney General settled with Glow, Inc. in September 2020 with a $250,000 civil penalty. The WilmerHale summary says Partner Connect granted account-linking requests without authorization or confirmation from the user whose data would be shared, and that password-change requests were not adequately verified. Glow agreed to get affirmative consent before disclosing user data to third parties and to run annual privacy and security risk assessments. A TechCrunch report of February 13, 2024 said a bug in Glow's API exposed names, self-reported age group, location, user IDs and profile images for around 25 million users, and that the researcher said it was fixed about a week after reporting. Whether that history is a dealbreaker is a personal call, and it's worth reading Glow's current privacy policy yourself.
Is Flo or Glow more private?
Both have documented privacy histories. The FTC announced a proposed settlement with Flo Health on January 13, 2021, alleging it shared health data from millions of users with third parties including Facebook's and Google's analytics divisions, AppsFlyer and Flurry despite privacy promises; the final order came June 22, 2021. A related $59.5 million class settlement (Google $48 million, Flo $8 million, Flurry $3.5 million) received preliminary approval in April 2026, with a final approval hearing on October 29, 2026 (HIPAA Journal). Meta did not settle: a federal jury found on August 4, 2025 that Meta violated the California Invasion of Privacy Act, with damages to be decided separately (PPC Land). Glow paid a $250,000 penalty to California's AG in 2020, and a 2024 API bug exposed profile data for around 25 million users. Neither company has a clean record, so read each one's current privacy policy before logging sensitive data.
How much does Glow Premium cost?
Per Glow's site, Glow Premium is $59.99 per year after a 7-day free trial (as of October 2026). It includes GlowGPT, advanced analytics, premium articles and ad-free use. Pricing can shift with promotions, so check the current price inside the app before subscribing.
What's the difference between Glow and Eve by Glow?
Glow's site lists the Ovulation Tracker and a separate Period Tracker (Eve) among its four apps, and describes Eve as tracking periods and supporting sexual wellness. If Glow's fertility focus doesn't fit what you're after, Eve is worth a look from the same company before switching elsewhere.
What's a good alternative if Flo or Glow isn't the right fit?
Veya is worth a look if you want cycle tracking alongside mood, sleep, fitness, and nutrition in one app, plus LH test logging for ovulation confirmation. Core features are free with no ads. The main tradeoffs are that it's iOS only (a web app covers other platforms) and doesn't have the TTC community or content library that Glow or Flo have built up.
Want to See More Apps Compared?
This guide focused on Flo vs Glow, but there's more to look at depending on why you're comparing. If you're weighing whether to leave Glow entirely, or want a broader look at TTC-capable trackers, these go further.
- Glow Alternatives 2026: Fertility & Cycle Apps Compared →
- Flo Alternatives 2026: 7 Period Trackers Compared →
- Premom vs Flo: OPK Scanning vs Cycle Tracking →
If trying to conceive is the reason you are comparing, Flo vs Ovia vs Glow for Trying to Conceive looks at LH, temperature and partner features across the three.
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Other App Comparisons
- Flo vs Clue vs Glow: Free Period Trackers Compared (2026)
- Flo vs Stardust: Which Period Tracker Fits You? (2026)
- Flo vs Natural Cycles: Which One Should You Use?
- Flo vs Ovia: Cycle & Pregnancy Compared (2026)
- Best Period Tracker App 2026: 6 Apps Compared
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