Open device management
Use the email address from your purchase to manage your registration. You do not need a separate website password.
- Visit your device management page.
- Enter your Purchase email and choose Continue with email.
- Find the eight-digit verification code in that inbox.
- Enter it on the website and choose Verify email.
The verification session is temporary. If it expires, verify your email again. The initial response is deliberately general and does not confirm whether an address has a purchase.
Recover an activation code you previously used
- Verify your purchase email using the steps above.
- Find the relevant registration under the returned licenses.
- Choose Send recovery email.
- Use the new code from the recovery email for future validation in the app.
Recovery replaces the previous activation code. It does not add another paid term, restart a trial, or create extra Mac slots, and existing device allocations are preserved.
If you have a new purchase that has not been redeemed and no registration appears, do not assume it was lost and do not buy again. Check the original activation email, then contact support with the purchase email and order reference.
Move to another Mac
Each paid license family allows two physical Macs. Before switching, check the names and activation details shown in your device management page.
To free a particular old Mac’s slot, choose Deactivate beside that Mac when the action is available. Install Duvrin on the new Mac and validate with your purchase email and current activation code.
If both slots are occupied and you activate a third Mac directly in the app, Duvrin asks for email verification and shows the Mac selected for replacement. The automatic candidate is the oldest active allocation. Read Replace this Mac: and confirm only if that is the Mac you intend to replace. To remove a different one, cancel and use device management first.
An already-issued offline permission on a removed Mac may stay usable until its deadline. Removal is not a remote wipe, it does not delete downloaded files from that Mac, and merely reopening a removed installation does not reclaim a slot.
Lost access to the purchase email?
Contact support and explain the problem, including the order reference if you have it. Support will explain what is needed to verify ownership. A receipt screenshot alone does not guarantee a transfer or an email-address change.
Do not send activation codes, email verification codes, full card details, or identity documents in an initial message.
After reinstalling or replacing hardware
An ordinary reinstall should not be treated as a new purchase or a new trial. If the Mac’s registration is no longer recognised, use the supported recovery and activation flow before deleting app data or Keychain entries.
For a hardware change or an unexpected device-limit message, contact support with the app version and what changed. Avoid repeatedly activating different installations while trying to diagnose the problem.