Comparison
Flo与Premom 2026：隐私、功能与价格比较
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服务于重叠但不同的受众。Flo是一个通用的月经和健康追踪器——全球最受欢迎，拥有4.4亿用户。Premom专注于生育，在尝试怀孕（TTC）社区中因其能够拍摄和分析排卵预测试纸（OPK）而受到欢迎。
Flo提供广泛的功能：70多种症状、健康聊天机器人、社区论坛、怀孕内容和医学专家的文章。Premom提供专注的生育工具包：OPK试纸读取、基础体温（BBT）图表和为积极尝试怀孕的用户设计的周期预测。
不幸的是，它们共同拥有隐私违规的历史。这两个应用都因在未获得用户同意的情况下共享生殖健康数据而受到联邦执法行动的制裁。对于在它们之间选择的用户来说，最重要的功能并不在任何一个应用中——而是你的生育数据是否保持私密。
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的功能更广泛：AI聊天机器人、70多种症状、社区论坛、怀孕模式和数千篇文章。它是一个健康平台，而不仅仅是一个追踪器。
Premom的突出功能是其OPK试纸读取器——拍摄排卵测试试纸并获得AI驱动的读取。对于TTC社区来说，这确实很有用，并减少了对微弱线条解释的猜测。除了OPK读取，Premom还提供BBT图表和基本周期预测。
PinkyBloom不提供OPK试纸摄影，但在其他所有维度上超越了这两个应用。语音记录意味着你可以说“今天的OPK是阳性”，而不是在应用菜单中导航。AI情绪预测可以预测情感模式。医生就诊报告生成器为生育咨询创建专业摘要——这是Flo和Premom都没有提供的功能。
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.
