Fauxx is an open-source Android privacy tool that poisons data broker and ad-tech profiles by generating continuous, plausible, off-demographic synthetic activity from your device. The goal is simple: make your real behavioral signal statistically indistinguishable from noise.
It kind of looks good on paper, but this might single you on the other side of a spectrum. Say, now you are that weird user running Firefox on Android - you give out some data, but with adblock you don’t see majority of it. With this tools, you kind of poison the data, but you could still get singled out because the bad guys just have more money to spend.