Why ordinary limits are easy to ignore
A daily limit appears after the habit has already started. By then you are inside a feed designed to keep you there. Dismissing a warning becomes part of the same automatic motion.
Just This changes the sequence. Start a session before focused work, choose the apps that should stay out of reach and decide how strict the block should be.
Three levels of friction
Soft mode makes the impulse visible and leaves a deliberate five-minute escape. Hard mode removes the in-app bypass. Locked mode keeps the decision sealed until the timer ends.
The point is not to make your phone unusable. Calls, tools and the apps you need can remain available. You decide what the shield protects.
Private by design
Just This has no account and no backend. Selected apps, written intentions, schedules and focus history stay on your iPhone.
There are no streaks, points or engagement notifications trying to turn focus into another feed.