This app was made for Firefox OS.
With the Coisa Certa! all people can learn and test their knowledge on good behavior.
Indicated uses +To get more knowledge about good behavior. +To review things about good behavior. +To teach to children some issues of good behavior.
http://diegobonfim.com/app/coisa-certa
Developed by Diego Bonfim <diego@diegobonfim.com>