Your CleanMyMac activation number can only be used on one computer unless you bought a license for multiple Macs.
So, if you want to transfer your CleanMyMac license to another computer, you should cancel current activation first. You can do it in two ways.
If you have already uninsalled the app, or do not have access to the computer anymore, or forgot the activation number, please use the License Retrieval system:
You’ll see a list of all the licenses registered under this email.
After that you’ll receive an email with your activation number.
Alternatively, if CleanMyMac is still installed on your Mac and you can open it, do these:
That's it! Now the license is disabled, and you can use the activation number on your new Mac.
In case you face any problems, contact our Customer Support for assistance.
Clean, optimize, and maintain your Mac with the all-new CleanMyMac 3. It scans every inch of your system, removes gigabytes of junk in just two clicks, and monitors the health of your Mac.