You've installed the app; fantastic! Now to login with your account.
Logging into your account
If you already have a GitKraken account, login by navigating to Sign into a different account and then enter your username and password.
If you're logging into GitKraken using another account such as GitHub, select the GitHub option to authenticate.
Can I use my GitKraken Pro license on more than one computer?
Yes, your GitKraken Pro paid subscription is associated with your email address, not a specific computer. So you can use GitKraken Pro on as many computers as you'd like!
I just subscribed but I do not see PRO in the lower right corner.
Be sure you are logged in with the same email address registered with your GitKraken Pro subscription. You can check by navigating to Sign into a different account, and then verify that your email is correct.