What you really need from a phone during an emergency is to make a call or send a text. Most apps aren't that useful.

For my next phone I'm taking another shot at a dumb phone -- Nokia 3310. I had this phone in its first iteration and liked it; it will soon be back. 22 hours of talk time which isn't being drained by a bunch of useless apps. Hopefully they won't mess up the UI too much from the original. At least the real buttons are still there.