You choose which days of the week you want to be Facebook free. If we catch you cheating we'll fine you. You determine the fine amount and can opt out any time.
Loss Aversion refers to people's tendency to prefer avoiding losses to acquiring equivalent gains: it is better to not lose $5 than to find $5. Some studies have suggested that losses are twice as powerful, psychologically, as gains. Downfine utilizes this principle to help you reduce your Facebook usage.
You set your fine amount. Fines are incurred if you use Facebook on one of your down days. You will only be fined once per day.
I keep it. I don't deserve it and that's the whole point. We deliberatly do not give the money to a good cause as that would encourage you to cheat. The fines should hurt a little bit.