Lion runs in the background to be always available and therefore was designed to have very low resource requirements. So Lion needs almost no CPU cycles (especially while just waiting for activation) and has a very low memory footprint.

The (huge) dictionaries are not stored on your computer - let alone system memory.
In cooperation with the online dictionary "LEO" Lion offers you far more than 500000 translations without storing them locally.

Another great advantage of this approach is that new translations or corrections are always up to date and available to you without anything for you to do.

Despite its little size Lion contains everything it needs to run and does not depend on any framework like Java or .NET.

A very smooth and easy installation (”silent” if desired), low system requirements and a very simple licencing administration make Lion a powerful tool for corporations of any kind and size.