Most productivity advice assumes your attention fails because of a planning problem. Time-block your calendar. Write a better to-do list. Use the Pomodoro technique. All of that is fine, and none of it addresses the actual moment where focus breaks: the tiny, almost involuntary reach for your phone when a task gets slightly hard.

That reach doesn’t happen because you’re undisciplined. It happens because the app is right there, unlocked, one tap away, and your brain has learned that checking it produces a small hit of relief. No amount of planning removes that loop. Only removing the one-tap access does.

Why software-only blockers lose

Most app blockers are a toggle in Settings. The problem with a toggle is that the same finger that turns it on can turn it off, thirty seconds later, the moment focus gets uncomfortable. There’s no real barrier, just an extra tap and maybe a guilt trip. Anyone who has ever “just checked one notification” during a deep work block knows exactly how well that holds up.

Moving the lock outside your phone

Screeny uses NFC tags (along with QR codes and barcodes) as the unlock mechanism, on top of Apple’s Screen Time framework. Practically, that means:

  1. You tap your phone to an NFC tag once, in the morning, to lock Slack, email, and whatever else pulls you out of deep work.
  2. The tag lives somewhere that isn’t your desk. A drawer in another room. A colleague’s desk. Your bag, already zipped.
  3. For the rest of your focus block, unlocking those apps requires physically going back to that tag. Not toggling a setting. Walking there.

That single extra step, walking to another room, is enough to break the automatic reach. It converts “check Slack” from a reflex into a decision, and most reflexive checks don’t survive becoming a decision.

For teams and shared spaces

This works especially well as a personal ritual for remote or hybrid workers: pair one NFC tag with your “focus mode” folder of apps, and physically separate yourself from it during deep work blocks. Some people keep the tag at a shared kitchen counter, so getting back to their phone-apps means literally stepping away from their desk, a built-in stretch break as a side effect.

What this doesn’t replace

An NFC lock won’t fix bad prioritization or an overloaded calendar. It solves one specific, extremely common failure mode: the involuntary reach for a distracting app mid-task. If that’s the thing breaking your focus, and for most people, it is, moving the unlock outside your own willpower is the more honest fix.