NotchStar license key not working

Licence and billing Published 4 November 2026

All of help center Try NotchStar in the browser Buy for $4

If your NotchStar license key does not work, the message under the License box tells you why. There are four messages, and each has a different fix.

“That key isn’t valid”

The key was not found. Copy it again from the purchase email and paste it whole. Leading and trailing spaces are removed for you, but a missing character or a letter swapped for a similar one is not caught. If it still fails, write to hello@notchstar.com with the email you bought with.

“This key is already active on 3 Macs”

The limit is reached. Press Deactivate this Mac in Settings, License on a Mac you no longer use, then try again. See one license on 3 Macs and deactivating a Mac.

“Couldn’t reach the license server”

Your Mac could not connect. Check your internet connection and try again. Activation is the one step that needs a network. Afterwards the app works offline.

“The license server had a problem (code N)”

The server answered with an error. Wait a moment and try again. If it repeats, send the code in an email.

“This license is no longer active”

The server said the key is no longer valid, for example after a refund. See the refund page. If that looks wrong, write to hello@notchstar.com.

Still stuck

Include your macOS version and Mac model, as described in reporting a bug. The trial and the tools are explained in the quick notes feature, which keeps working while you sort it out.

Quick answers.

Do I need internet to activate?

Yes. Activation contacts the license server once. Afterwards NotchStar works offline.

Link to this answer

Keep reading.

How to activate your NotchStar license key: Buy NotchStar, then paste the key in Settings, License and press Activate. One key works on up to 3 of your Macs. Prices as of 4 November 2026.
Can you use one NotchStar license on 3 Macs: One NotchStar license works on up to 3 of your own Macs for $4 once. Use the same key on each and free a slot by deactivating. Prices as of 4 November 2026.
How to deactivate NotchStar on a Mac: Open Settings, License and press Deactivate this Mac. That frees one of your 3 activations so the same key can go on another Mac.
Does NotchStar work offline and what is the weekly check: NotchStar works offline. A licensed copy checks quietly about once a week, and being offline never revokes the license. Only an explicit refusal can.

Put your notch to work.

Buy it once for $4, activate it in a minute, and keep it. Not sure yet? Try every tool in the browser on the home page, or install the 7 day trial.

Buy NotchStar for $4 Try it in the browser