Synching

Hi @Bobbi,

Thanks for taking the time to contact us.

A single 1Password for Mac license covers your use of 1Password for Mac on as many Macs as you use. And a 1Password 5 for Mac license covers all previous versions of 1Password for Mac. So you are all set in that regard if you have a 1Password for Mac license.

As for syncing, I would recommend Dropbox. Only the version of 1Password from the Mac App Store supports iCloud syncing, and, as you mentioned, it won't work on the older Mac.

Syncing with Dropbox is an excellent choice. It's how I have always synced my 1Password data and still do. Wi-Fi Sync must be done with the two devices connected to the same Wi-Fi network. This means that you need to remember to sync them before you go on an adventure that separates them. Dropbox syncing is fully automatic and securely syncs your 1Password data anywhere you have Internet access. There's nothing to remember (or forget!), and I definitely consider that a win. :)

Additionally, your 1Password data is end-to-end encrypted, so with regard to security there is not a difference between syncing 1Password data with Dropbox or iCloud. 1Password simply doesn't depend on the security of either to protect your data. 1Password provides its own protection.

Dropbox also has the advantage that it can be used to share vaults with friends, family, and co-workers. It is not possible to share anything between iCloud accounts.

The 1Password for Mac User Guide can get you started if you wanted to sync with Dropbox:

1Password for Mac: Sync with Dropbox

I hope that helps. Please let me know!