Friday is an Android app that let’s you browse events that happened in the past. You can see what happened on your phone since you turned it on the first time. It tells you where you’ve been, who you called or sent emails to. The app provides you with analytics of your entire phone usage. It’s much like an automated journal of your life. I like it because usually I have no idea what happened 10 days ago.
The interface is slick and even though Friday is still in early development, the functionality is there. Friday is currently in alpha version but you can sign up for an invite here.