What if police seize my phone with Floriva on it?

If your phone is seized and unlocked, local data is accessible. This requires a warrant, physical possession of your device, and the ability to unlock it. This is a much higher bar than subpoenaing a company database. Use a strong passcode rather than biometrics, as courts have ruled that suspects can be compelled to provide fingerprints but not passcodes in some jurisdictions.

Should I stop tracking my period entirely?

That is a personal decision. The risk is not period tracking itself but where the data is stored. On-device tracking with a strong device passcode provides reasonable protection while maintaining the health benefits of cycle awareness.

Can my phone's operating system track my period without the app?

Apple Health can store cycle data with end-to-end encrypted iCloud backup. Google has access to data stored in Google Fit. If you use an on-device tracker, also check whether your phone's built-in health features are separately collecting cycle data.

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Best Period Tracking Apps Your Data Can't Be Subpoenaed From

We compared 5 period trackers based on whether your cycle data can be obtained by law enforcement. Ranked by data architecture, not policy promises.

How We Evaluated We evaluated each app on one question: can the company behind this app be legally compelled to produce your cycle data? This depends entirely on whether the company has your data in the first place. Privacy policies, encryption in transit, and corporate promises are secondary to the fundamental question of data location. We did not weight features, prediction accuracy, or interface design heavily. When the evaluation criterion is legal protection, architecture is the only factor that matters. Understanding the Legal Mechanism A subpoena is a legal order requiring a person or company to produce documents or testify. In the context of period trackers, a prosecutor investigating a suspected abortion violation can issue a subpoena to the company requesting all data associated with a specific user account, email address, or device ID. The company can challenge the subpoena in court, but this costs money and takes time. Most app companies are not equipped or willing to fight subpoenas on behalf of individual users. Flo's privacy policy says it will challenge overbroad requests, but this is a policy commitment, not a structural guarantee. On device trackers eliminate this