The 15-minute rule for porn urges
The 15-minute rule is simple. When an urge hits, you do not say yes and you do not say no. You say not now, and you wait 15 minutes before you decide anything. You spend those minutes doing something else. Most of the time the craving fades on its own, because a craving that is not fed passes. It turns an impossible all-or-nothing fight into a short delay you can actually win.
Why a delay beats a fight
Saying never is a huge, heavy decision, and your brain rebels against it. Saying not for 15 minutes is small and easy to agree to. And it works because a craving is not a line that rises forever until you cave. It comes in waves, and it fades when you stop pouring attention on it. You are not resisting forever. You are outlasting one wave that was always going to pass.
How it fits with the 90-second idea
You may have heard that an urge passes in about 90 seconds. Both are true, because they describe different things. The sharp spike, the sudden hit, often peaks and falls within roughly 90 seconds, which is what the 90-second urge tool is built to carry you through. A craving is the lower, naggy pull that can hang around longer than that single spike. The 15-minute rule is for that lingering craving, a delay long enough for it to settle, not a single wave. Use the 90 seconds for the spike, and the 15 minutes when the pull just will not leave.
What to do with the 15 minutes
Change your body and your surroundings, not only your mind. Stand up. Leave the room. Go outside if you can. Start a chore, message a friend, get a glass of water. The goal is to break the trance and put real time and distance between you and the easy tap. Do not sit there staring at the clock arguing with yourself, that is just feeding it. Go do the other thing and let the timer run.
Make the tap harder while you wait
The rule is easier to keep when porn is not one tap away in the first place. A blocker means the 15 minutes are not you against a live open door, they are you waiting out a wave with the door already shut. Escape's Safari blocker is free, needs no account, and blocks 40,000+ known sites the moment you turn it on. If the moment is really loud, its panic button is a harder version of the same idea, a built-in interrupt for when you need more than a timer. Knowing which moments hit you hardest helps too, which is what spotting your triggers is for.
The blocker, the 90-second tool, and the panic button are all in the Escape app, free to start, no account, and nothing about you leaves your phone.