Comparison
Flo 與 Premom 2026：隱私、功能及價格比較
Our verdict
Flo paid $8M in a data-sharing class action. Premom was charged by the FTC for sharing fertility data with China-based firms. Both apps have been caught betraying user trust with reproductive health data. PinkyBloom never sells your data — no account, no ads.
Flo vs Premom vs PinkyBloom
| Feature | Flo | Premom | PinkyBloom |
|---|---|---|---|
| Price | ~$49.99/yr premium | Free + ~$49.99/yr premium | Free |
| Data storage | Cloud (Flo servers) | Cloud (Easy Healthcare servers) | Stored on your phone |
| Privacy track record | Class action settled 2025; Flo paid $8M | FTC enforcement action | Never sold, no ads; partner sharing end-to-end encrypted |
| OPK test strip reader | |||
| AI assistant | Cloud-based chatbot | Built-in AI assistant (Pinky) | |
| Voice logging | |||
| Mood forecasts | |||
| Community features | Forums and stories | ||
| Account required | Email required | Account required | No account needed |
| Ads | Ads in free tier | Ads in free tier | No ads ever |
| Doctor visit reports | |||
| Safety Mode | Anonymous Mode (still cloud) |
Overview
Flo 和 Premom 服務於重疊但不同的受眾。Flo 是一款通用的月經和健康追蹤器——全球最受歡迎，擁有 4.4 億用戶。Premom 專注於生育，因其能夠拍攝和分析排卵預測試劑（OPK）測試條而在嘗試懷孕（TTC）社區中受到歡迎。
Flo 提供廣泛的功能：70 多種症狀、健康聊天機器人、社區論壇、懷孕內容以及來自醫學專家的文章。Premom 提供專注的生育工具包：OPK 測試條解讀、基礎體溫圖表和為積極嘗試懷孕的用戶設計的週期預測。
不幸的是，它們共同擁有的歷史是隱私違規。這兩款應用程序都曾因未經用戶同意分享生殖健康數據而受到聯邦執法行動的影響。對於在它們之間選擇的用戶來說，最重要的功能不在任何一款應用中——而是你的生育數據是否保持私密。
Privacy comparison
Flo and Premom represent the two most documented cases of period/fertility app privacy failure in the United States.
Flo's violations span years. The FTC alleged in 2021 that Flo shared menstrual data with Google, Facebook, and Flurry Analytics; Flo settled with no fine and no admission. A class action settled in 2025, with Google paying $48M and Flo $8M. A California jury found Meta liable for eavesdropping on Flo users' data.
Premom's violations are arguably more alarming because of where the data went. In May 2023, the FTC charged Premom's developer, Easy Healthcare, with sharing fertility data — including ovulation test results — with Google, AppsFlyer, and critically, two China-based firms: Umeng (Alibaba subsidiary) and Jiguang (Aurora Mobile). The data sharing was undisclosed, and Easy Healthcare violated the Health Breach Notification Rule by failing to notify users.
Both apps now operate under federal consent orders. But the architectural vulnerability remains: both store data in the cloud, both require accounts, and both have proven willing to share data with third parties.
PinkyBloom has no ads, no data brokers, and never sells your data. Your fertility log is stored on your phone, not in an account on our servers.
Features and intelligence
Flo 的功能集更廣泛：AI 聊天機器人、70 多種症狀、社區論壇、懷孕模式和數千篇文章。這是一個健康平台，而不僅僅是一個追蹤器。
Premom 的突出功能是其 OPK 測試條讀取器——拍攝排卵測試條並獲得 AI 驅動的讀數。對於 TTC 社區來說，這確實非常有用，減少了對淡線解釋的猜測。除了 OPK 讀取外，Premom 還提供基礎體溫圖表和基本週期預測。
PinkyBloom 不提供 OPK 測試條拍攝，但在其他所有方面超越了這兩款應用。語音記錄意味著你可以說「今天的 OPK 是陽性」而不是導航應用菜單。AI 情緒預測預測情感模式。醫生訪問報告生成器為生育諮詢創建專業摘要——這是 Flo 和 Premom 都不提供的功能。
Pricing comparison
Both Flo and Premom charge approximately $49.99/year for premium features. Both have ad-supported free tiers. Over five years, either app costs roughly $250 — for apps that have been caught sharing your fertility data with third parties.
PinkyBloom is free. No ads. The five-year cost is $0. For the TTC community, where users track their most sensitive fertility data daily, the combination of better features and no ads makes PinkyBloom the clear choice.
There's a better option
Both Flo and Premom have federal enforcement actions for sharing fertility data without consent. PinkyBloom never sells your data and has no ads. Better AI than Flo, voice-based OPK logging instead of Premom's camera.
