1Password's feature list, when using an account, includes: "Access your data on the web at 1Password.com." Is it possible to opt out of that while still using

1Password's feature list, when using an account, includes: "Access your data on the web at 1Password.com." Is it possible to opt out of that while still using their sync? I'm uneasy with anything that does the decryption on their end, which that seems to qualify as. EDIT: Supposedly the crypto is done in-browser. Still feel uneasy about that.