In the wake of the Supreme Court's decision to overturn abortion rights, period tracking apps have become a new area of concern.

Stardust, which combines traditional menstruation tracking with the movements of our moon and the planets, is the first app to offer end-to-end encryption for all users. After initial concerns about data protection were raised last month, Stardust's founder Rachel Moranis said the new privacy update was already set to be announced. The app promised to protect user privacy and never sell user data.

If we are subpoenaed by the government, we will not be able to hand over any of your period tracking data. It isn't from your data. We cannot see it. Only you can see this.

Flo received an FTC complaint about misleading users and sharing personal information, and other period tracking apps have handed over user data in sensitive cases. Both activists and privacy experts agree that the recent decision could have a similar effect on personal privacy.

Screenshot of the Stardust app privacy alert.

Credit: Stardust

Screenshot of the Stardust app homepage.

Credit: Stardust

There is a short list of "safer" period tracking options. Stardust has a privacy policy on its website.

According to the company's announcement, the app's encryption will go live on Tuesday, June 28 along with the release of theAndroid version and the newios update.