This $9 key physically locks your most addictive apps

# This $9 Key Makes It Harder to Waste Time on Your Phone Someone invented a physical key that forces you to stop and think before opening time-wasting apps like social media or games—you literally have to scan it with your phone to unlock them. It's a simple way to add friction to habits you're trying to break, since the extra step might make you reconsider whether you really want to open Instagram right now. At $9, it's cheaper than most apps that promise to help you focus, and it works by making distraction slightly more annoying.