Download the app, then right-click on your desktop, select 'Gadgets' or 'Add Gadget,' and choose fGadget Clock Pro from the options.

The Pro edition offers multiple clock face styles, customizable countdown sounds, timezone support, and adjustable face size, unlike the Free version.

Open the app, go to Settings > Face Style, then select from the available premium face styles you'd like to use.

Navigate to Settings > Time Signal, enable countdown, set the duration, then choose your preferred sound and volume.

Yes, go to Settings > Timezones and select the zones you want to display; the clock will then show multiple time zones.

Open Settings, select 'Face Size,' then drag the slider to your desired size for better visibility.

fGadget Clock Pro offers a one-time purchase option; check the app store or Settings > Purchase for details.

Go to Settings > Purchase or the app store, and follow the prompts to buy the Pro edition and unlock all features.

Try restarting your computer, ensure the app is updated, or reinstall fGadget Clock Pro from the official source.

Yes, navigate to Settings > Time Signal to set and customize your countdown sound and volume preferences.