[farbodsaraf]

I used to remove apps but I'd end up re-installing them after a while. Unlearning a habit (aka forming a new habits to replace the old one) is about having a proper cue (referring to the habit loop from the "The Power of Habit" book). The fake app acts as a cue/signal to remind you about your goal and boost learning the new habit of not visiting the app randomly based on the habit.

By installing the fake app, you'll be surprised how many times you unconsciously you open them, although you are aware that they are fake apps. It feels like our brain is on auto-pilot, once we're hooked/addicted to instinctively open addictive apps.