This was happening to me until I removed Facebook and Facebook Messenger from my phone. I believe these apps listen to conversations even when you aren’t using them. I am not alone in believing this.
I have evidence of same and it may not be just FB and Messanger
Last week a co-worker engaged me in a discussion concerning her father-in-laws diagnosis of prostate cancer. This lasted about 20 or 30 minutes. I had my cell phone on me. I do not have FB or Messanger.
I do not deal with cancer cases at work. I did not google any information on prostate cancer. I did not send any mails pertaining to prostate cancer or any other form of cancer.
Two days later I start getting ads and suggestions for prostate cancer treatment options. How unlikely should that be?
I am trying to reproduce the effect by talking about other rare disease conditions with my phone switched on.
If the bugger is spying on me I'd like to know.