Wenn du c:geo nach der Installation zum ersten Mal startest, öffnen sich direkt die Diensteeinstellungen, wo du deinen Benutzernamen und das Passwort für geocaching.com eingeben kannst.

Wenn du später erneut auf die Diensteeinstellungen zugreifen möchtest, findest du sie unter:
Menü → Einstellungen → Dienste → geocaching.com

Klicke auf die Schaltfläche c:geo autorisieren wie im Folgenden gezeigt::

After clicking on Authorize c:geo a window will be shown, where you can enter your username and password for geocaching.com and finally click on Check authentication.
If you do not yet have an account, you may click on the button Create an account to open the registration page of geocaching.com.

After completing the registration, c:geo will automatically return to the service menu and you can see the successful registration as your username and your avatar will be shown:

Now you just have to select the back function on your device to reach the main menu of c:geo. At next start of c:geo you will be automatically taken to the main menu.

If you want to connect c:geo with another service than geocaching.com or re-access the service settings, you will find them in:
Menu → Settings → Services

Select a geocaching platform , which you want to connect with and activate the service in the following screen by clicking the Activate box. Afterwards start the authorization process by clicking on Authorize c:geo.

and Start authorization in the next screen. If you do not yet have an account, you may click on the button Create an acount to open the registration page of the Opencaching platform.

You will now be taken to the web page of the Opencaching platform in your browser. Login to the web page with your username and password and - where required - agree on the following page to give c:geo access to your Opencaching account.

After completing the registration c:geo should open again and report the successful registration: