Comparison
Flo vs Glow 2026: プライバシー、機能、価格の比較
Our verdict
Flo paid $8M in a class action for sharing data with advertisers. Glow exposed 25 million users' data in a 2024 breach after years of documented security failures. Both apps store your data in the cloud; both have failed to protect it. PinkyBloom stores your cycle log on your phone, needs no account, and never sells your data.
Flo vs Glow vs PinkyBloom
| Feature | Flo | Glow | PinkyBloom |
|---|---|---|---|
| Price | ~$49.99/yr premium | Varies (quarterly/yearly premium) | Free |
| Users | 440M+ | 25M+ | Growing |
| Data storage | Cloud (Flo servers) | AWS cloud (default) | Stored on your phone |
| Privacy track record | Class action settled 2025; Flo paid $8M | 25M user data breach (2024) | Never sold, no ads; partner sharing end-to-end encrypted |
| AI assistant | Cloud-based chatbot | Built-in AI assistant (Pinky) | |
| Voice logging | |||
| Mood forecasts | |||
| Community features | Forums and stories | Community forums | |
| Offline data mode | Anonymous Mode (still cloud) | Opt-in Offline Data Protection | Cycle log stored on your phone |
| Account required | Email required | Account required | No account needed |
| Doctor visit reports | |||
| Ads | Ads in free tier | Ads in free tier | No ads ever |
Overview
FloとGlowは、女性の健康アプリの分野での主要なプレーヤーであり、それぞれ大規模なユーザーベースとコミュニティ機能を持っています。Floは4億4000万人のユーザーを持つ市場のリーダーで、健康チャットボットと最も広範なコンテンツライブラリを提供しています。Glowは2500万人のユーザーを持ち、特に妊娠を希望する女性の間で人気があり、妊娠追跡、BBTチャート、アクティブなコミュニティフォーラムを提供しています。
両方のアプリはソーシャル機能を重視しています — Floにはコミュニティストーリーがあり、Glowにはフォーラムがあります。両方とも妊娠追跡、症状の記録、予測を提供しています。コアな追跡ニーズに関しては、体験は大まかに比較可能です。
彼らが異なるのは、失敗の仕方です。Floは意図的にデータを広告主と共有しました。Glowはセキュリティの脆弱性を通じてデータを保護することに繰り返し失敗しました。意図的なデータ共有と過失によるデータ露出の違いは、あなたの生殖健康データが危険にさらされているときにはほとんど重要ではありません。
Privacy comparison
Flo and Glow have both failed spectacularly at protecting user privacy, but in different ways.
Flo's sharing was by design, according to the FTC's complaint: it alleged in 2021 that Flo sent menstrual data to Google, Facebook, and Flurry Analytics despite privacy promises. Flo settled with no fine and no admission, and paid $8M to settle a class action in 2025.
Glow's failures were negligent. Consumer Reports flagged "serious security and privacy flaws" in 2016. A California settlement in 2020 covered security failures dating to 2013. Then in February 2024, TechCrunch reported a bug that exposed the personal health data of 25 million Glow users. Three incidents over eight years — a pattern of systemic security failure.
Glow offers an opt-in "Offline Data Protection" mode, but research shows fewer than 5% of users change default settings. By default, data goes to AWS. Flo's "Anonymous Mode" still uploads data to servers.
Both apps' attempts at damage control — Flo's Anonymous Mode, Glow's Offline mode — are opt-in patches on fundamentally vulnerable architectures.
Features and intelligence
Flo is the more complete platform: AI chatbot, 70+ symptoms, community stories, pregnancy mode, and educational content from 120+ medical experts. It's designed to be a comprehensive health ecosystem.
Glow focuses on fertility with BBT charting, ovulation tracking, cycle predictions, and community forums. The forums provide genuine peer support for the TTC community. However, Glow's intelligence layer is statistical, not AI-driven.
Neither app offers voice logging or predictive mood forecasting.
PinkyBloom provides a built-in AI assistant: conversational health assistance, voice logging, mood forecasts, and doctor visit reports. No community forums (which would require cloud accounts), but encrypted partner sharing through PinkyBond provides private one-to-one support instead.
Pricing comparison
Floはプレミアムで約49.99ドル/年です。Glowの価格はプランによって異なります。両方とも広告サポートの無料プランがあります。数年にわたり、両方のアプリはデータを保護することに明らかに失敗した製品に対して意味のある金額を費やします。
PinkyBloomは無料です。広告もありません。生殖健康データを扱うアプリの場合、価格の比較にはデータ露出のコストも含めるべきです。FloとGlowはどちらもそのコストが現実であることを証明しました。
There's a better option
Flo intentionally shared your data with advertisers. Glow accidentally exposed 25 million users' data through security failures. PinkyBloom never sells your data, and your cycle log is stored on your phone, not in an account on our servers. Built-in AI, no account, free.
