Android ========> iPhone
Currently using a windows phone with default apps installed. It might be the most secure phone in the world.
But that phone will die one day. I will have to pick my next phone.
I have been debating if PureOS/Librem was really secure since it built on Android and develop in Germany.
I am thinking I will get an Apple Phone since I can develop for it and Apple appears to be more trustworthy then Google Android.
I had an Android (Google) phone, what a failure that was. Had an iPad at the time and swore I would get an iPhone when my Samsung Android died. Best decision ever. I love my iPad, love my iPhone, both hassle free in every aspect.