I recommend checking out the Blackphone. You can partition the phone's hard drive, one encrypted for storage of sensitive info and the other for use of social media apps, which we all know spy on us perpetually....
https://www.silentcircle.com/products-and-solutions/devices/
anyway, I have no affiliation with Blackphone at all but thought it to be a clever concept to fulfill a need. bless up!
RE: Mobile Apps That Steals Your Information (protect your crypto accounts)