Yes, the database is free but it was quite an effort for us to make it usable (which is an embarassment for the EC and the entire ILCD network I think), and thus we invented the database analyse launcher that you need to buy, to compensate our effort. If you have it, you can have free access to the EF database from Nexus. Otherwise you can of course register in all the different EF nodes, download datasets once you get access, harmonise and correct, and start using it.
Thank you for your understanding, best wishes,
Andreas