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Nullgen AI Blocker

For parents

Homework your child actually did

Install once on the computer they use for school and the shortcut disappears. Add the iPhone or iPad app and it disappears from their pocket too. The rest of the internet keeps working.

Start a free trial

Try a 14 day free trial of our Pro plan built for the whole family.

  • Blocks prompts and AI apps
  • 100% on-device processing

A convenient & effective solution

An assignment gets pasted into a chat box and comes back finished in seconds. Blocking a handful of AI sites lasts about a week, and reviewing their computer and browser history every evening is exhausting for everyone. Removing the prompt box removes the shortcut without the extra work.

Why this helps

  • 01

    The shortcut stops working

    Assignments cannot be typed or pasted into an AI prompt, so the easy path is closed.

  • 02

    Research still works

    Search, reference sites, school portals, and video lessons are untouched. Only prompt input is blocked.

  • 03

    No surveillance

    You do not read their messages or watch their screen. Nothing they type is recorded or sent anywhere.

Free forever

Try the extension for free

Install the extension on the browsers you care about and AI prompt input stops working on them. No account, no cost, no data leaving the device.

Download Free Extension
14 day trial

What Pro adds

Pro turns per-browser protection into something you manage centrally: enrolled devices, policy that syncs in real time, access requests you approve or deny, and the mobile and desktop apps.

Explore plans

Every device, one account

The extension covers the browser. The apps cover the phone, the tablet, and soon the whole desktop. Policies and approvals follow the person across all of them.

Pro

Pro for families

Pro adds a parent dashboard to enroll computers and phones, approve exceptions, and keep Nullgen pinned so it stays on.

Start a free trial

  • Access when you say so

    Your child requests AI access. You approve or deny each request.

  • Every family device at once

    Enroll the laptop, the desktop, the shared machine, and their iPhone or iPad, then manage them from one place.

  • Their phone too

    The iOS app blocks known AI apps and sites on their iPhone or iPad, with nothing inside the app to turn it off. Android is coming soon.

  • Pinned so it stays on

    Enforcement keeps Nullgen installed so it cannot be turned off or uninstalled on family browsers.

Start with the free extension

It takes a minute to install on the computer they do homework on. The Nullgen mobile app can also cover their phone.

Download Free ExtensionExplore plans