EFA CAMverse 3.2.1 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. This free tool was originally created by LEBERT Software Engineering GmbH & Co. KG. We recommend checking the downloaded files with any free antivirus.
From the developer:
EFA CAMverse opens nine PCB/CAM formats - Gerber up to X3 (RS-274X) with Excellon drill data, EAGLE, ODB++, IPC-2581 (DPMX), GenCAD 1.4, IPC-D-356, DXF, PADS Layout ASCII and KiCad - in one native Windows interface, free to use as a viewer. It shows layers, stackup, drills, components and netlists, in 2D and in an interactive 3D view with component models.
You may want to check out more software, such as Extended Forms Authentication or Easewe Forex Alerter, which might be related to EFA CAMverse.