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An app that forces you to quit.

NSFW Locker is an Android porn blocker built to put a barrier between an urge and explicit content. It can detect NSFW content on screen, block it and become impossible to remove if all guides are followed correctly.

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See NSFW Locker in action Product demonstration

See what NSFW Locker actually does.

These are real screens from the Android app. Use the arrows or swipe to move through them.

Detects explicit screen content and blocks it
Repeated detections can trigger temporary app blocks
Optional settings and uninstall protection make the setup harder to bypass

NSFW Locker free trial and lifetime licence screen — Try it firstStart the 24 hour free trial or enter a lifetime licence.

NSFW Locker protection controls — Protection controlsTurn on screen scanning and Accessibility from the main app.

Android Accessibility permission for NSFW Locker — AccessibilityAndroid asks you to approve the screen protection service.

Android Device Admin activation for NSFW Locker — Uninstall protectionOptional Device Admin adds another removal step.

NSFW Locker Settings Locked screen — Settings protectionWhen enabled, Android Settings can be blocked by NSFW Locker.

NSFW Locker lock protection duration screen — Timed lockChoose how long protection must stay enabled.

NSFW Locker Content Blocked screen after explicit content detection — Content blockedExplicit content triggers the block screen and adds a strike.

Try it free before you pay.

Install the Android app, follow the setup guide and use the 24 hour trial with no card required. If you want to keep using it, the lifetime licence is £35 for one device.

Download the APKGet the official Android installer from this website.

Follow the setup guideSet up the permissions and protection options needed by the app.

Use the free trialTry the blocker on your own phone before deciding whether to buy it.

Open the installation guide Buy lifetime licence for £35

Lifetime updates are included. Future updates can add stronger hardening, app blocking and app time restrictions. Have an idea for the app? Email support@nsfwlocker.com.

NSFW Locker is available on Windows too.

NSFW Locker is also available for Windows 10 and 11. The Windows version is designed for desktop protection and can block explicit content both online and offline.

View NSFW Locker for Windows

Frequently asked questions

What Android version do I need?+

NSFW Locker supports Android 11 and later.

Why does NSFW Locker need Accessibility?+

Accessibility supports the screen monitoring and blocking flow used by NSFW Locker. The installation guide shows you how to enable the required permission.

Does the paid licence need constant internet access?+

No. Internet is required for the first paid activation. After activation, the lifetime entitlement can continue working offline.

What happens if I replace my phone?+

Contact support so the registered device can be cleared after appropriate checks and the licence can be activated on a replacement phone.