Pi network app is trusted by Google Play shop.
Testing period has been going on since march 2019.
There are no cases of information theft, hacking or identity theft.
They back up the value of the Pi cryptocurrency with also selling advertisements.
It is more profitable for developers to sell advertisements and create advertising environments than scam people.
They are creating a marketplace where you can sell and buy items and services for Pi cryptocurrency and also advertise using Pi.
They already manage to sell commercials in Pi network app.
You can turn off commercials in your Pi network app.