If you encounter this error, it means you have already maxed out the 3 devices Syntorial can be installed and authorized on.
NOTE: On July 28, 2025 we released a new license model that allows a single user progress on unlimited devices. So if you only have one “user”, and need more than 2 computers and 1 iPad, use the Contact us button at the top of this page and request to be moved to the new license model. Otherwise…
To authorize a new computer or iPad, just de-authorize one from your list:
- Go to your account dashboard https://account.audiblegenius.com/courses
- Click the “Authorization” button in the Syntorial section
- De-authorize the devices you are no longer using for Syntorial.

