Razen is described as 'Simple, powerful schematics & PCB design' and is an app in the Education & Reference category. There are more than 10 alternatives to Razen for Windows, Mac and Linux. The best alternative is KiCad, which is both free and Open Source. Other great apps like Razen are Fritzing (Paid, Open Source), LibrePCB (Free, Open Source), gEDA Project (Free, Open Source) and PCBWeb (Free).
The gEDA project has produced and continues working on a full GPL'd suite and toolkit of Electronic Design Automation tools. These tools are used for electrical circuit design, schematic capture, simulation, prototyping, and production.
PCBWeb is a 100% free Windows desktop CAD application for designing and manufacturing electronics hardware. Features include schematic capture, PCB Layout with gerber output, and Bill of Materials manager.
FreePCB is a free, open-source PCB editor for Microsoft Windows, released under the GNU General Public License. It was designed to be easy to learn and easy to use, yet capable of professional-quality work.
Full 32-bit Windows application Internal resolution: 0.0001 mm (0.1 micron) Maximum PCB design size: 2000 mm x 2000 mm Unlimited number of vectors per PCB design Documentation layers for silkscreen, soldering mask, soldering paste, assembly etc.