* Prices are quoted in US Dollars. Payment can be made in other currencies by making a selection on the next page.

A single software license entitles the buyer to use Optimism on multiple computers (e.g. home and work). Additional licences must be purchased for second and subsequent users.

If licenses are purchased for more than one user on the same computer then the software must run in separate user accounts. This is to ensure that confidentiality is maintained where required. Please email us for more information on implementing this arrangement if you are unsure.