&gt; They&#x27;re great when you have a browser extension, but leaving the app, entering another app, and then copying and pasting on mobile is difficult.<p>Agreed, but again - the answer here is not some elusive &quot;login via email link&quot; - how do you even <i>do</i> that in a native app?<p>As with the password manager situation, I believe Apple&#x27;s approach is right in this space too - auth form fields fields in <i>native apps</i> on iOS can hook into the saved passwords system (aka Keychain). I have <i>yet</i> to see it used in a real app, but I don&#x27;t use that many apps either, so its possible support is wide-spread.<p>&gt; The biggest problem that password managers haven&#x27;t solved yet, is adoption.<p>Windows has a built-in password manager. OS X&#x2F;iOS has a built in password manager. Even if you discount those who don&#x27;t use the built in solution, that is surely tens if not hundreds of millions.<p>I have no idea how good the Microsoft solution is - but Apple&#x27;s is good enough that I wonder why people think good, <i>secure</i> password management is some mythical beast that will never be realised.