just installed this last night. worked well. actually woke me up 10 min earlier than alarm time. guess it works! what sold me on it, besides free, is that it has a airplane mode. i dont know about others, but when i sleep, i sleep. i dont wake up at a drop of a hat when (and if) i hear the phone go off. (plus it saves on battery! 
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Smart Alarm Clock | AndroidApplications.com
)Smart Alarm Clock | AndroidApplications.com
