LightsOut is an app that senses movement in your friends’ phones.
Are your friends still up clubbing, are they in a taxi between bars, have they gone to bed already? In seconds you can see who is active and who is not.
It would be nice to know before you call someone if they are awake or not. If you send a message you might be waiting hours for a reply if your buddy is out for the count. With LightsOut this new social app you can see at a glance who is partying and who has gone to bed. Also you can leave your own status to let people know exactly where you are. Your nights out have never been this good, sorry we can't help with the morning after though.