Terms

Last updated June 2, 2026.

The software

The desktop app is licensed under MIT — see the license. You can use it for anything, including commercially, no permission needed.

Acceptable use

nullock intercepts network traffic. Only intercept traffic you own or are explicitly authorized to test. Using it to attack systems you don't control is illegal and not our doing.

Paid services

• Subscriptions are month to month and renew automatically until you cancel.
• First 30 days are fully refundable. After that, cancel anytime and you keep access through the period you paid for.
• We may suspend a hosted account that's being used to harm others or that abuses fair-use bandwidth after a warning.

No warranty

The software is provided as-is. We work hard to make it solid, but you run it at your own risk, especially against production systems.

Changes

If we change these terms we'll note it in the changelog and email active subscribers. Continued use means you accept the update.