Vault 3 Outliner stores your notes as a searchable outline. Vault 3 organizes your information into categories and sub-categories that you specify. Vault 3’s outline is easily and rapidly searchable. Vault 3 uses strong encryption to ensure the privacy of your personal data. Vault 3 runs on Android phones and tablets.There are no limits to the size of Vault 3 documents or to the nesting depth of outline items.Vault 3 is: