The best replacement for 1password is lastpass.

The best alternatives to 1password are rated as following:
★★★★★  lastpass
★★★  keychain
★★★  keepass
★★  msecure
★★  roboform
★★  dashlane
★★  icloud keychain
★★  onesafe
★★  splashid
★  ewallet
★  1password pro
★  keeper
★  datavault
★  wallet
  keychain mavericks
  apple keychain
  keepassx
  mac keychain
  e-wallet
  password box
  data guardian
  passwordwallet

Your alternative for 1password is not listed? Suggest!
Speaking about 1password, one probably shouldn't forget about dropbox.

Other search terms related to 1password and their ratings are:
★★★★★ dropbox
★★★ icloud keychain
★★ yubikey
★ alfred
You have in mind a companion for 1password and it is not yet here? Propose!



Google Trends

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1password
lastpass
keychain