Forest is an app helping you stay away from your smartphone and stay focused on your work. Whenever you want to concentrate, you can plant a seed in Forest. In the next 30 minutes, this small seed will gradually grow into a big tree. However, if you cannot resist the temptation and leave this app to check Facebook or play a game, your little cute tree will wither away. Every day you will own a forest filled with trees (or some withered twigs) and every tree represents 30-MINUTES that you have been working hard.