You may have spotted a few references to profiles around the app. In Wavebox, 'profiles' work differently to other browsers.  

In Wavebox, 'profiles' enable you to add multiple apps of the same type and sign-in into them using separate accounts/logins.  It cleverly 'sandboxes' each app so that they work independently. It does this safely, effortlessly and robustly.

Wavebox always shows your current profile in the top-right of the window

Wavebox allows 'profiles' to work side-by-side. In Google Chrome, Firefox and other browsers, 'profiles' require a bit more effort. They are akin to having a fresh new instance of each browser. This forces you to have a completely new set of windows, extensions, cookies, browsing history and so forth.(More info about how Chrome handles profiles here).

Wavebox takes a different approach to this this and allows each app to have a different profile, but still work alongside your other apps. All the profiles share windows and extensions, but keep their own cookies and browsing history. This has the great advantage of being able to 'sandbox' some of your apps from the rest of your browsing session but still keeping them in one centralised place. The best of both worlds!

Take a look at the example below, two Gmail apps both share the same window, the same set of extensions, but have completely different logins and credentials. The icon indicator in the top right of the screen shows which profile you're in.

Setting a profile when adding and app.

When you add an app to Wavebox it also asks you which you profile you'd like to use. Normally it picks the default profile unless Wavebox detects that it would better suited in its own profile (e.g. when adding your second Gmail app). You can of course overwrite this behaviour as needed. During the add wizard, you can choose one of your existing profiles or create a new one!

Wavebox automatically names profiles and gives them a cute image. You can change these in Settings

Setting a profile later on.

If you've already added an app and feel like it would be better suited in a different profile, you can do this through 'Settings'. (Bare in mind you will need to sign back in after doing this).

To do this, right click on any group or app and go to Group Settings. From here you can change the profile of the whole group, or for an individual app.

Making profiles your own.

Wavebox automatically assigns a name and icon to each profile so it's easily recognizable, but if you've got a specific use in mind. (e.g. one for Work, or one for Hobbies) then you can change its name and icon. Open Wavebox Settings and head to the Profiles tab. From here you can customize profiles and even add new ones.