Junior for Mac and Windows is an app you install once and sign in to. Some firms have their IT team push it out for you, so check whether it is already on your machine before downloading anything.
Install
- Sign in at app.myjunior.ai in a browser.
- At the bottom of the sidebar, next to Settings, press the question-mark button.
- Choose Download the desktop app. Junior works out which platform you are on and sends that installer, so there is nothing to choose.

Then install what downloaded, and sign in as below.
Needs macOS 14.4 or later. Open the .dmg, drag Junior into your
Applications folder, and open it from there.

Sign in
- Open Junior. Type your Work email (the field shows
you@company.com) and press Continue. - Junior asks your firm which methods apply and shows only those:
| Button | What happens |
|---|---|
| Continue with Google | Opens your firm's Google sign-in in a browser |
| Continue with Microsoft | Opens your firm's Microsoft sign-in in a browser |
| Sign in with SSO | Opens your firm's own sign-in page. Often labelled with your firm's name |
| Email me a sign-in code | Sends a six-digit code to that address |
- For a code, check your email and enter it on the Enter sign-in code screen, then press Verify and sign in. If it does not arrive, Resend code becomes available after thirty seconds.
While a browser sign-in is in progress Junior waits, telling you "A browser window has opened. Return here after signing in."

Questions
It says no sign-in methods are available for my organization.
Junior recognised your firm but has not been given any way to sign you in. That is a configuration step on Junior's side or your IT team's, not something you can work around. The message tells you to contact your administrator because they are the ones who can fix it.
Do I need to sign in separately on my phone?
Yes. The two apps are separate installs, each with its own sign-in. See installing and signing in on your phone. Your calls appear in both once you are signed in to both.