The Freedom of the Press Foundation and the Guardian Project have launched a new Android app called Haven. The app will transform a phone into a mini-surveillance kit that can be used to record nearby surroundings in case of intrusions. Developers created the Haven app for activists, dissidents, and to help journalists, but it can also be used as a secret surveillance kit, allowing miscreants to record off-the-record conversations, spouses, children, and others. Haven can log this information on the phone, or send it as a notification to another phone via SMS or Signal DM or to a remote website.
Source: https://www.bleepingcomputer.com/news/technology/snowden-team-launches-app-that-turns-your-phone-into-mini-surveillance-station/