While Keka can extract RAR files, it cannot create RAR files due to licensing restrictions (RAR is proprietary). BetterZip can create RAR files, but only if you download the official RAR tools from RARLAB separately.

In conclusion, both BetterZip and Keka are excellent choices for managing ZIP archives on Mac. While BetterZip offers more advanced features and customization options, Keka provides a simple and free solution for casual users. Consider your needs and preferences to make an informed decision.

Choose Keka for one-off compressions; choose BetterZip for iterative archive work.

Pick Keka for simplicity and value; pick BetterZip for power, nuance, and automation. Both are solid — choose the one that matches how much control and integration you actually need.