Glow App Alternative: Period Trackers That Don't Monetize Your Data

What Glow Doesn’t Document

Glow is a period and fertility tracker that has been available since 2013. It offers cycle tracking, fertility prediction, pregnancy tracking, and community features. The app has a substantial user base and broad feature coverage.

What Glow does not offer is a documented privacy-first architecture. The app is cloud-based, and its privacy policy does not commit to avoiding data sales to third parties in clear, auditable terms. There is no on-device storage model, no published commitment to zero-knowledge design, and no documented history of architectural privacy investment.

Glow has not been subject to FTC enforcement action for data sharing. The absence of enforcement history is not the same as a documented privacy commitment.

The Architecture Gap

Period tracker data is sensitive by any standard — cycle dates, fertility status, pregnancy information, and symptom logs that can reveal health conditions. When this data is stored on a company’s servers, three risks exist regardless of the company’s intentions: the company can change its privacy policy, a legal process can compel data disclosure, and a security breach can expose the data.

Glow’s cloud architecture means all three risks apply. The company has not published technical documentation that would indicate mitigation of any of them.

How Floriva Compares

Floriva does not store your data on our servers. There is no policy to change, no server to subpoena, and no centralized data store to breach. For users who want Glow’s fertility and cycle tracking features without accepting cloud storage risk, Floriva is the architectural alternative.