For IPhone: Wake Alarm Clock

Features

  • Three alarm styles: slap and flip, shake, and swipe
  • Simple interface for setting alarms quickly
  • iTunes support for waking up to music
  • 12 built-in alarm sounds with additional sounds available via in-app purchase
  • Recurring alarms
  • Progressive alarms that get louder gradually
  • Siri support to set the alarm by voice
  • Free, ad-supported version if you don’t want to pay

 

For Android: Gentle Alarm

Features

  • Set as many alarms as you want, at any time of day, in both 12 and 24 hour formats
  • Create pre-alarm, alarm, and snooze “profiles” where you can customize the alarm sound, volume, fade-in volume, duration of the alarm, even display brightness. Comes with three profiles by default: “workday,” “day off,” and “nap.”
  • Can be configured to play music, playlists, or even an internet radio stream as an alarm, so you can wake up to your favorite song or playlist, and can even be configured to only play songs by specific genres or artists
  • Can be configured to sound an alarm that slowly increases in volume or vibration intensity until you dismiss it or after successive snoozes
  • Can schedule multiple alarms, each with different songs or playlists, or to play a random song or playlist
  • Can be configured to require you to solve challenge questions or simple math problems before the alarm can be snoozed or dismissed
  • Lets you flip your phone over to snooze, or shake the phone to disable the alarm
  • Can be configured to launch a specific application when the alarm goes off
  • Can display a countdown timer on-screen until the alarm sounds, making the app useful for a timer as well as an alarm clock
  • Has a built-in “dock” mode and a “night mode,” where the clock and alarm settings are displayed on-screen or the current time is displayed on a dimmed display, making it useful as a desk clock or bedside clock, respectively
  • Supports speech input for alarms, the same way the default clock and alarm does
  • Allows you to auto-dismiss or auto-snooze alarms
  • Allows you to customize the color and background of the alarm display
  • Has a downloadable home screen widget, and downloadable extra alarm sounds if you don’t like the default selection
  • Has a built-in flashlight
  • Has full support for third-party apps like Tasker and Sleepbot, so you can even add more customization features or use the app to help track your sleep