In-built dictionary has 270K English words to search for match. There are five main advantages of Crossword Help compared to other crossword solvers:
1) Contains 55,000+ Proper Nouns, including 40,000 famous people & deities and around 14,000 places. These proper nouns are essential for solving general knowledge clues.
2) Provides filtering to narrow down on possible matches, essential when only one or a few letters are known. E.g. you can filter out rarely used words.
3) Contains special functionality for solving cryptic clues
4) Solves two word combinations and anagrams, particularly useful combined with first and last names of famous people, or when doing cryptic clues with two word anagrams.
5) Each match informs you what it is, i.e person, city, rare word etc.
Most of these features are not in any of the other crossword solver applications. And they are all available without the need for a constant internet connection.