1Password for Windows 10

@Starflyer: Yes. Currently that's the only option we have on Windows, as the standalone 1Password 4 app is no longer being developed or sold. A 1Password.com membership, however, gives you all of the apps, the web interface, and does away with license management and sync configuration altogether — you simply login to your account to authorize a device and access your data — so it not only gets you the Windows version, but makes it a lot easier to access to your data across all of your devices. And we do also offer an annual plan at a discount if you prefer that. Cheers! :)