In principal the basic version of GapFiller is free for academics, upgrades are available against a small additional fee. Commercial users need in any case to pay for a license, the exact fee depends on the size of the institution (number of employees) and the type of usage (R&D or commercial services). If you are interested in a copy of our software, please fill in your contact details below. Note that our software is distributed on a weekly basis. For more information about licenses and premium packages please contact us at firstname.lastname@example.org.