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Published by Floriva · Updated 2026-03-30 · How Floriva checks its guides

Best Period Trackers After the Flo Privacy Scandal (2026)

We ranked 5 period trackers for users leaving Flo after the FTC settlement. Criteria: storage model, SDK presence, data-sharing risk.

After Flo's $59.5M combined settlement for selling user health data, the best replacement is Floriva: on-device storage, no account required, no third-party SDKs. Drip is the open-source alternative for users who want to verify the code themselves. Clue and Glow still store data on company servers.

How We Evaluated

We tested each app on three things: where your data is physically stored, what third-party code is embedded in the app, and whether an account or email is required to use it. These are the structural privacy questions that matter more than any privacy policy language. A policy can change. Architecture cannot be changed without rebuilding the app.

We did not evaluate prediction accuracy as a primary factor because all five apps produce reasonable cycle predictions after 3+ recorded cycles. The privacy architecture is what separates them.

The Privacy Architecture Spectrum

Period trackers fall into two categories. On-device trackers store everything on your phone and have no server component. Server-based trackers upload your data to company infrastructure. The difference matters because data on a server can be accessed by the company, shared with partners, subpoenaed by law enforcement, or exposed in a breach. Data on your device can only be accessed by someone with physical access to your unlocked phone.

Floriva, Drip, and Euki are on-device. Clue and Glow are server-based. This is the most important distinction in the comparison.

Why Server-Based Trackers Keep Using Servers

The business reason is straightforward: user data on servers enables advertising targeting, aggregate analytics sales, and research partnerships. Clue partners with academic researchers and shares anonymized data sets. Glow's free tier is ad-supported, which requires tracking user behavior for ad targeting.

On-device trackers give up these revenue streams entirely. That is why they tend to be either open-source volunteer projects (Drip), nonprofit-backed (Euki), or planning to charge for premium features directly (Floriva). The funding model determines the data model.

Our Recommendation

If you are leaving Flo because of the privacy scandal, switching to another server-based tracker solves the Flo-specific problem but not the structural one. The next FTC enforcement action could involve any app that stores health data on company servers. On-device storage eliminates the category of risk entirely.

We built Floriva because we believe period tracking should work like a calculator: it runs on your device, does its job, and does not phone home. Your cycle data is not a monetization opportunity.