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Activation & Licensing


Activate With an Email Address

To continue using Macabacus beyond the free trial period, if applicable, you must purchase a subscription and activate the software. To activate Macabacus, click the Activate button (with a key icon) on the Macabacus tab in Excel, PowerPoint, or Word and enter a valid email address. A few notes on activation:

  • If you purchased a single Macabacus license online, use the email address you specified at checkout to activate Macabacus.
  • Alternatively, if you received a welcome email from Macabacus, enter the address to which the email was sent. The email address used to activate and to which your welcome email was sent must match exactly, so keep that in mind if your organization uses email aliases.
  • If the email address you entered to begin your Macabacus trial matches the email address you provided at checkout, then Macabacus will activate automatically and no action is required.
  • If you signed into an older version of Macabacus using an email address and password, then installed a newer version that no longer supports sign-in authentication, the email address you used to sign in will be used to activate Macabacus automatically.


How Licensing Works

A Macabacus license is valid for any supported Office version, and is not associated with any particular Office version. For example:

  • You can activate Macabacus in Office 2016 at home and in Office 2013 at work using a single license.
  • If you upgrade from Office 2010 to Office 2016 you need not purchase a new license (but must install Macabacus for Office 2016).
  • You can reassign a license (seat) from one user running Office 2013 to another user running Office 2016.

Each individual Macabacus user requires a license. We do not offer site licenses. Licenses may not be shared by multiple users, but can be transferred among users (i.e., remove one user's access and then reassign that "vacant seat" to another user).

When you activate Macabacus using an email address as described above, the Windows user account you are logged into becomes "authorized," or associated with that email address. You can authorize up to two Windows user accounts simultaneously through activation, providing a single user access to Macabacus on up two computers in most scenarios (e.g., work and home PCs). You can actually use Macabacus on any networked or virtual PC (e.g., a conference room PC), provided that you log into Windows using an authorized Windows user account.

Sharing Access Prohibited

Both Windows user accounts authorized via activation with a single email address must be used exclusively by the same person. Sharing email addresses among users for the purposes of activating Macabacus is prohibited, and may result in suspension or termination of your Macabacus services.

In older versions of Macabacus that you sign into using an email address and password, a single user may sign in on an unlimited number of computers, but may only be signed into one computer at a time.

Transferring Licenses

You can transfer licenses among users and Windows user accounts using these instructions.

This documentation refers to Macabacus version 8.9.14. Some features and descriptions of these features may not
apply to older versions of Macabacus. Update your Macabacus software to take advantage of the latest features.