This app was mentioned in 1 comment, with an average of 1.00 upvote
It's out on a mobile near your pocket ;-)
https://itunes.apple.com/us/app/chainto/id1017355864
https://play.google.com/store/apps/details?id=com.BaptisteVillain.Chainto
http://www.amazon.com/gp/mas/dl/android?p=com.BaptisteVillain.Chainto