If you need to open .ZIP or .RAR files on your Mac then RAR Extractor Free is a simple and effective solution. RAR Extractor Free works simply by dragging your files to the RAR Extractor Free icon in your Dock. It will then automatically unzip any files in the archive. RAR Extractor Free is therefore easy enough to use for anyone. Note that it can't unzip password protected archives and it can only do one archive at a time. However, you can drag as many archives as you want into the Dock.

RAR Extractor Free 5.2.0
Easily unzip RAR files
PROS
- Very easy to use
- Supports multiple archives
CONS
- Only unzips one archive at a time