I think i'm addicted to the internet. what can i do to help this. is there an app to treat this?

Not likely.: You might consider checking out the mutual support groups that are available on the internet. An alcoholic who wants recovery, and is unable to leave the bar, may find another alcoholic in the bar who is looking for recovery, and together they may do what neither could do alone. The key to recovery is connecting to other people; an app is unlikely to achieve the breaking of isolation.