Bridge is available for downloading on the Bridge product page.
Similarly Mixer can also be downloaded from the Mixer product page.
You can also download both apps from Account menu after you've subscribed. Simply click the avatar icon in the header on the site to download both apps.
You can also download both apps from the your Account Settings after signing in to the site. Click the avatar on the top right corner of the site to open a menu where you can click Account to go to your Account Settings page.
Quixel Mixer is in Beta and for the duration of the beta, it will be completely free to use -- even when you don’t have an active trial or subscription.