Is Stardust actually private for period tracking?

Stardust markets itself as a privacy-focused alternative, but a 2022 Wired analysis found its privacy protections weaker than Clue's, an app with no special privacy branding but a clean data record. Stardust is cloud-based. Your cycle data lives on their servers. Privacy marketing and privacy architecture are different things. On-device storage is what provides real protection. Stardust does not offer it.

Will I lose my data switching from Stardust?

Not if you export before deleting. Go to Stardust Settings, then Privacy & Data, then Download My Data. Stardust emails a download link. Save the file. Enter your last 3-6 cycle start dates into your new tracker during setup. The moon phase and astrological data in your export will not transfer, but cycle dates are what prediction algorithms actually need.

Does Stardust delete data when I close my account?

In-app account deletion starts the process of removing your active data. Backup copies may persist until you submit a formal CCPA data deletion request to privacy@stardust.app. Stardust has 45 days to respond under CCPA. Keep a copy of the in-app deletion confirmation and your email request.

How long does switching from Stardust take?

Export, account deletion, and new tracker setup take 30-60 minutes total. The formal deletion request email takes about five minutes. After your new tracker has 2-3 recorded cycles, predictions will match Stardust's cycle forecasting. The feature you are leaving behind is the astrology integration, not the cycle tracking.

alternatives

How to Switch From Stardust to a More Private Period Tracker

Stardust markets privacy but stores data in the cloud. Export your cycle history, delete your account, and switch to a genuinely on-device tracker.

The gap between privacy marketing and privacy architecture Stardust launched in 2022 with an explicit appeal to users worried about period data privacy after the Dobbs decision. Women owned, astrology inflected branding, and a clear message that it was built in response to data privacy concerns. It grew quickly among users who wanted a values aligned alternative to Flo. The problem is that being women owned and being privacy protective are different claims. In 2022, Wired analyzed Stardust alongside other period trackers and found its privacy protections weaker than Clue's, a tracker with a clean record on data practices but no special privacy branding. Stardust is cloud based. Your cycle data is stored on their servers. A company can have good values and still store data on a server that can be subpoenaed, breached, or subjected to a policy change after an acquisition. The privacy protection comes from the architecture, not the founder's identity. This guide is for users who chose Stardust because they wanted a more private option, and are now ready to move to an app where the privacy guarantee is structural rather than positional. For a full comparison with local storage alternat