I&#x27;ve been relatively happy with SplashID, and while they&#x27;re pushing their online cloud offering, you can also use it offline or synchronize just on your local network.  (Looks like the version without sync is entirely free.)  Works on Mac, Windows, iPhone, Android, and I&#x27;ve been using it since the Palm OS days.<p><a href="https:&#x2F;&#x2F;splashid.com" rel="nofollow">https:&#x2F;&#x2F;splashid.com</a>