[fuzzybeard]

Some apps won't let you access any of your content without authenticating with their servers. So even if it's local content, not having an internet connection would deny access. I can envision CBP saying they need to crack your phone to get to the local stuff.

[eridius]

What apps do that, besides games?

[riffic]

local data can still be viewable if the device is imaged and the content is unencrypted.