Is watching porn a sin?
If you are asking whether watching porn is a sin, you are almost certainly asking for a reason that matters deeply to you, your faith. This is not the page to hand down a ruling, because that belongs to your own faith and the people you trust in it. What we can offer is honest and practical. If you have decided you want to stop, here is how to actually do it.
Where the question comes from
Most major faith traditions, across Islam, Christianity, Judaism, and others, discourage porn, and many treat it and masturbation as wrong. If your tradition teaches that, then for you the moral weight is real, and it is often the very thing that makes someone want to quit. That motivation is a strength, not something to argue with. Where the exact line sits, and words like haram or sin, is a question for your own scholars, teachings, and conscience, not for an app.
What we can actually help with
The practical side is the same whatever your faith. Wanting to stop for a reason you believe in is a strong start, but on its own it is not enough, because the urge does not care about your reasons at 11pm. Faith gives you the why. You still need the how.
The how
Two plain things do most of the work. Make porn hard to reach, so it is not one tap away in the weak moment. Escape's Safari blocker is free, needs no account, and blocks 40,000+ known sites the moment you turn it on, and it never sees or stores what you block. And have one thing you always do when an urge hits, before you decide anything. Many people also lean on their faith community and daily practice for the accountability side, which genuinely helps.
On shame
One honest caution. Faith-based motivation is powerful, and it can tip into heavy shame after a slip, which tends to feed the next one rather than prevent it. Most traditions hold room for mercy and starting again. Treat a reset as exactly that, a fresh start, not proof you failed. If quitting is tied to your faith, the wider recovery approach here pairs well with it, and the blocker is a quiet, private tool that asks nothing of you. Escape is on the App Store, free to start, no account, nothing about you leaves your phone.