if you have access to the phone then TTSPY for android and iPhone would do it. https://www.ttspy.com/ or Android Spy https://www.blurspy.com/android-spy-software/
you already have Amazon, Google and Siri listening (they all claim nothing is kept but......)
This is one of the best things when it comes to making the internet safe for kids and children. A parental control app allows parents to keep eyes on the kids. It is a kind of ghost spy app that empowers parents to track the phone activities of their kids. BlurSPY is the best Android spy app in the market. It comes with a lot of feature for parents that are really good when it comes to ensuring safe internet use.