The app is a cool concept but I don't see it ever taking off. They broadly assume that people want to be distanced from their phones, which I'm sure most don't. There is nothing wrong with enjoying technology. Yes I check my phone at last once every few minutes when I'm at home, does that made me an "addict"? I'm not checking social media, I'm just browsing through the things I have installed to pass the time or have some laughs. Add on the fact that this is a paid app once it releases, who is actually going to pay for an app to inconvenience them? Some of the features are noble, such as forcefully blocking notifications until user specified times, and putting a more human catered UI for apps in. I applaud the effort, but I just can't see this taking off and becoming a best seller. Sure many people will pay for it, but it won't reach as many people as they are hoping.
EDIT: Adding on some more thoughts There are absolutely people who have unhealthy addictions to phones. I have a nephew who is staring at his phone screen nearly every waking moment. Every minute he doesn't have a phone in his hands he is whining. That is a new generation of smartphone addiction that I don't think most current adults have. Do you think these type of people want to forcefully have that addiction helped? Do you think they'd actually pay money to inconvenience themselves?
I agree with whoever said that app notifications need to be catered to. It might not work well with generic settings. Allow all and deny all for apps isn't doing much. I agree with the other fellow who also chimed in about smartphone addiction really not being a newsworthy topic. It's not something that can really be fixed at large. Even getting a small number of individuals to break their truly unhealthy smartphone addiction seems near impossible.