Uploading photos to Microsoft’s viral How Old Am I app lets the company post them anywhere on the internet along with your name.

The app gives users the chance to upload photos and have Microsoft’s systems analyse them and guess their age and gender. Microsoft has said that the system uses the photos to teach itself to guess better — but they could also use them across rest of the internet, too.

By putting pictures up you are granting the company, “its affiliates, and necessary sublicensees” the right to be able to use the pictures across all of their internet businesses, according to the terms.

The terms allow Microsoft or any of its affiliates to “publicly display”, reproduce and edit the pictures. It also allows them to “publish your name in connection” with the pictures.

Microsoft says that it doesn’t claim ownership of the pictures that are uploaded to the service.