The scope of operation of the app roughly includes the start page of the regular version of the time tracking system. So current time entries can be recorded and edited.

Here you get Goodtime Mobile:

You don't need a new account.

If you already have an account for the desktop version of the online time tracking system, you can use it for the mobile app as well. If you don't have a Goodtime account at all, you can register a new account.