The best replacement for vault is mountain dew.

The best alternatives to vault are rated as following:
★★★★★  mountain dew
★★★★★  surge
★★★★★  safe
★★  arch
★★  iconomy
★★  smoke screen
★  projectwise
★  heal
★  graveliner
★  erowid
★  jester
★  oakley store
★  liner
★  source one
★  grave liner
★  mt dew
★  subversion
★  pommel horse
  gold money
  oakley
  mello yello
  tunnel vault
  dew
  crypt
  perforce
  buzzsaw
  high jump
  casket
  concrete vault
  hyperlite state
  iron key
  tomb

Your alternative for vault is not listed? Suggest!
Speaking about vault, one probably shouldn't forget about filing cabinet.

Other search terms related to vault and their ratings are:
★★★★★ filing cabinet
You have in mind a companion for vault and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of vault in all years. Click on graph for more.
vault
mountain dew
surge