Old English Dictionary is an iPhone App version of the 1921 Bosworth & Toller Anglo-Saxon Dictionary. It contains entries, etymologies, and citations of more than 54,000 words in the Anglo Saxon Language language and is suitable for students of Old English or fans of Beowulf who want to read it in the original.

This App is based on a book that is in the public domain. It helps you typing Anglo-Saxon letters by interpreting key combinations off the regular keyboard and presenting you with possible word matches. For instance th gets you the letter thorn.