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Flo Review

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Should I use Flo?

AI-powered cycle and period tracking app - flo.health

· 3 days ago

Buy Flo if you want a free, popular cycle tracker and accept its data-sharing history. Skip it if privacy is a priority, because a local-first tracker fits that buyer better.

Confidence

Medium. Based on 20+ public sources. Sources covering other products named Flo, such as a WordPress plugin and an EV charging network, were excluded.

Ratings

  • Value for money
  • Ease of use
  • Feature depth
  • Support quality
  • Security posture

Pricing

$0

Free

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes
Flo PremiumNot confirmed in reviewed sources

Best for

  • Cycle and period tracking
  • Trying-to-conceive planning
  • Budget users wanting a free tracker

Not for

  • Privacy-first users
  • Teams or businesses needing shared tools
  • Ad-averse users on the free tier
  • Guess: anyone needing medical-grade prediction accuracy

Gotchas - check before you buy

high

Privacy history spans FTC action, a $56M settlement, and a jury verdict

medium

Ads and upsells saturate the free version

medium

Billing complaints about Flo Premium renewals exist

low

Core value sits behind the Premium paywall

Pros and cons

Pros

  • Most downloaded period tracker app
  • Free to use with core tracking
  • Built an anonymous mode after privacy backlash
  • $200M Series C signals a stable company
  • Large user base of 167 million

Cons

  • Flo data reached Meta; jury found misuse
  • Paid $56M with Google over privacy claims
  • Earlier FTC settlement over health data sharing
  • Free tier is ad-heavy and pushes Premium
  • Premium value debated; renewal charges questioned

Sources & method

- 12 sources - Checkered history: FTC settlement, $56M payout, and a jury verdict over sharing period data.

official x1review x6news x5
  • FTC health data settlement, Flo settled FTC allegations that it shared users' health data with third parties.
  • Flo and Google pay $56M, Flo and Google agreed to pay $56 million over period-tracking privacy claims.
  • Jury verdict on Meta data sharing, A jury decided Meta stole data from users of the Flo period-tracking app.

Key stats

  • Value for money: 2/5

    Rating

  • $0

    Starting price

  • 12

    Sources

  • Analyzed

  • Value for money: 2/5. Free tier works, premium value questioned
  • Ease of use: 4/5. Most downloaded tracker suggests easy onboarding
  • Feature depth: 4/5. Cycle, pregnancy, and partner modes exist
  • Support quality: 2/5. Complaint portal and billing disputes reported
  • Security posture: 1/5. FTC action, settlements, jury verdict on sharing
  • 167M Reported users Cited in a 2025 LinkedIn analysis
  • $1B+ Valuation At July 2024 Series C
  • $200M+ Funding General Atlantic led the round
  • Yes Free tier Healthline review confirms

Pricing

Free

$0

  • Basic cycle and period tracking
  • Ad-supported experience

Flo Premium

Not confirmed in reviewed sources

  • Premium insights and modes
  • Yearly subscription billing

Security

Checkered history: FTC settlement, $56M payout, and a jury verdict over sharing period data.

  • FTC health data settlementFlo settled FTC allegations that it shared users' health data with third parties.⁹
  • Flo and Google pay $56MFlo and Google agreed to pay $56 million over period-tracking privacy claims.⁸
  • Jury verdict on Meta data sharingA jury decided Meta stole data from users of the Flo period-tracking app.⁷
Full analysis

Based on 20+ public sources. Sources covering other products named Flo, such as a WordPress plugin and an EV charging network, were excluded.

Popular free cycle tracker with a privacy rap sheet: FTC action, $56M settlement, and a jury verdict.

Methodology

Based on 20+ public sources. Sources covering other products named Flo, such as a WordPress plugin and an EV charging network, were excluded.

Read how a report is made.

Sources

  1. All About Flo: A Review of the Period Tracker Apphealthline.com
    review
  2. Read Customer Service Reviews of flo.healthtrustpilot.com
    review
  3. Flo Cycle & Period Tracker - App Store Reviewsapps.apple.com
    review
  4. The Flo app is inherently flawedreddit.com
    review
  5. Is Flo premium worth it??reddit.com
    review
  6. Flo App Privacy Review: Is the Flo Period Tracker Safe?mozillafoundation.org
    review
  7. Jury Decides Meta Stole Data From a Period-Tracking Appcnet.com
    news
  8. Flo & Google to Pay $56M Over Period-Tracking Privacy Casecaptaincompliance.com
    news
  9. Flo Health settles with the FTCnatlawreview.com
    official
  10. Flo Health raises $200M at a $1B+ valuationtechcrunch.com
    news
  11. Flo developing anonymous mode to quell privacy concernswypr.org
    news
  12. Flo has shared who of their 167 million users were pregnantlinkedin.com
    news

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