Free Clock for iPhone [AppStore, Free]

Do you want clock with seconds or just full screen clock in both landscape and portrait modes? If yes these two free apps are for you.

The first one is called ClockFS. AppStore link. Nice changable interface. Right in application user can choose text and background color, and one of 11 different fonts.

The second app is called digiClock24. AppStore link. Settings are external, you need to go to Settings and scroll down to digiClock24. They are limited to time format and showing seconds. No changeable backgrounds and fonts.