Fliqlo Screensaver - A screensaver that displays the time using a flip clock.
Alarmy - World's most annoying alarm app
Padbury Clock Screensaver - Minimal screensaver for Mac
Galarm - Social alarm clock and reminders
Xscreensaver for Windows - XScreenSaverWin is a Windows port of XScreenSaver. 204 screensavers in XScreenSaver were ported.
Alarm Clock Xtreme - Alarm Clock Xtreme: Alarm, Stopwatch, Timer (Free) is the most popular alarm clock app created and published by AVG Labs for both iOS and Android devices.