Pandora's key app for iPhone and iPad
"Pandora’s key" is a app to cooperate with the app "Pandora’s Secret".
Files encrypted in the phone run "Pandora’s Secret".
Key save in the phone run "Pandora’s Secret".
Two app install on two phone. Content and key separated.
No one can acquire the content in "Pandora’s Secret" app until the user open "Pandora’s key" app on other phone.