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Using Your License On Multiple Computers

Viscosity's licensing is designed to be flexible by taking into account a number of home user and enterprise scenarios where multiple computers may be in use. Please see the following sections for more information.

Using A Standard License on Multiple Machines

Standard individual Viscosity serial numbers are licensed on a per-user basis. This allows you to install Viscosity on up to three computers using the same license as long as you are the primary user of Viscosity on these computers.

For full details please refer to the Viscosity End User License Agreement.

Using a Volume License for Multiple Users or Machines

Site/Volume serial numbers are licensed on either a per-user or a per-machine basis. You may choose whichever option suits you or your organisation best, however you cannot have a combination of both. All seats must be used on either a per-user or per-machine basis, they cannot be mixed. When licensed on a per-machine basis each installation counts as a allocated seat, which allows Viscosity to be installed on machines that are shared among users without the need to purchase a license for each user.

For more information about Volume serial numbers, and how to choose the serial type when placing an order, please see the License Types article.

For full details please refer to the Viscosity End User License Agreement.

Using A License on Both Mac and Windows Machines

When purchasing Viscosity you may elect to purchase a cross-platform license or an operating-system (OS) specific license.

A cross-platform license can be used to register Viscosity on both Mac and Windows machines. It's recommended for users who have both Mac and Windows machines, or for users who may change their OS in the future. We also recommend cross-platform licenses for enterprise and organisational deployments where there may be a mix of Mac and Windows users and where this mix can vary over time.

An operating-specific license can only be used to register Viscosity on the operating-system type (Mac or Windows) it is licensed for. We provide OS specific licenses to make available the cheapest price point possible for users who only need Viscosity for a single operating system. If you only use a single computer, or all of your computers are either Mac or Windows computers, we recommend purchasing an OS specific license.

Switching the Platform of an OS Specific License

If a mistake was made at the time of purchase and a OS specific license was purchased for the wrong platform we will happily exchange/switch it for the correct platform as long as the license has not been activated or used, and it has been no more than two weeks since the purchase was made. To request an exchange please send an email to our support email address with both the transaction/receipt number for the purchase and the license/serial number issued. If you are unsure how to find your transaction/receipt number please see the Retrieving Your Receipt Or Transaction Number article.

If a license has already been used, or it has been more than 2 weeks since the original purchase, we are unable to exchange/switch the platform. The price for a single platform license is designed to cover the expenses for developing, maintaining, and supporting Viscosity for that one platform, and it does not reflect the costs involved for multiple platforms.