Good value
The app is convenient and fast, and contains the entire text of the Shorter OED - a huge reference work - searchable by headword, wildcard search, or as a full text search (search "cheese" and find all listings with "cheese" in the definition). Its good value for the price. The software can also be expanded to add the Chambers Dictionary and Thesaurus. Chambers is not well known in North America, but it is a popular and well established dictionary in Britain, famous for it ssometimes witty definitions, and has a few listings that even Oxford misses. A few bugs in searches that occasionally popped up in previous versions seem to have been fixed in the latest version.
DMKZ about Shorter Oxford English Dict, v2.4