Song Alarm - song-alarm - Simple alarm clock for Android that plays a selected song at a desired time.
Talalarmo - Minimalistic android alarm
Gentle Alarm - Gentle Alarm can consider your sleepcycles to wake you up when you are in light sleep.
Insane Alarm - Wakes you up no matter what! Features - obscenely loud blaring emergency alarm sound.
Online Alarm Clock - The world's original online alarm clock, established in 2006.
AlarmDJ - Online Alarm Clock - Use YouTube videos or MP3 files as alarm sound. Works offline.