Unfortunately you will have to buy 1Password Pro at the normal
All iPhone and iPad apps are sold through the iTunes App Store
which Apple controls and processes all sales for and they haven't
given developers like us any tools for discounting or bundling iOS
apps with any other version of 1Password. We really hope they
change this one day to give us more flexibility to help customers
Now for the better news, you can definitely sync all your data
between all three devices! There are two ways to do this, you can
manually sync the devices over WiFi or you can automatically sync
them using Dropbox.
We recommend Dropbox because it's easier, automatic and you can
sync anywhere you have internet, you don't need to be on the same
WiFi network as your other devices.
You can learn how to setup Dropbox syncing on your Mac on our