Period and fertility tracking apps are looking at ways to give users anonymity in order to protect them from legal action in states where abortions will be banned.

Millions of people use apps to track menstruation and fertility. Users' personal health information is at risk of being used against them.

Law enforcement can use the data in the cloud to build a case against someone suspected of having an abortion. There are states where abortion is illegal.

Privacy is an issue when it comes to period- tracking apps. Flo was accused of sharing user data with third parties for advertising purposes.

Flo plans to launch an anonymous mode to protect its users' identities. Clue promised to stand up for its American users and not share their data with law enforcement.

While we share limited user data for our own marketing purposes, we never share personal health data that users track in the app

The Natural Cycles birth-control app is working on a completely anonymous experience.

The goal is to make it so no one can identify the user, according to the company's co- founder and co-chief executive.

Each company usually has information on how to remove data for those who have already added it. It is possible to remove the app, but not the information.

Users can request data deletion via email.

Users should consider the risks of their data being shared with the convenience of using an app.

She said she wouldn't use a period tracker if she lived in a state where abortion was being criminalized.

Eva said she doesn't want users to have a false sense of security because of the low risk of private user data being shared with law enforcement.