The 0.1 version of Grendel for Mac was provided as a free download on our website. The application relates to Education Tools. This Mac app was originally developed by Richmond Mathewson.
From the developer:
Grendel allows Unicode-compliant digitisation of Old Germanic texts including Anglo-Saxon, Gothic, Old High Germand, and Runic.
You may want to check out more Mac applications, such as English-Italian Dictionary '08, Japanese-English Dictionary or NounStar Language Study - Desktop Edition, which might be similar to Grendel.