Apps similar to FreeDictionaryApp include GoldenDict, which is open source with a free version. Other options are Wiktionary, WordReference, Dictionary.com and Wordnote Dictionary. You can choose from more than 10 Dictionaries like FreeDictionaryApp for Android, iPhone, the web, iPad and Mac.
Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictionary, thesaurus, dictionary of acronyms and abbreviations, dictionary of idioms, thesaurus, Columbia encyclopedia, Wikipedia...
United States
Personal vocabulary tool - flashcard app designed for working with foreign-language vocabulary.
Ukraine
Multilingual dictionary. The Blueseal dictionary provides translations of words and expressions between German, English, Spanish and French in all possible combinations. It also provides a synonym dictionary for all these languages.
Australia
iVocabulary is your personal vocabulary assistant. Collect, manage and study your vocabulary and specific terms for school, University, your job or your hobby.
Germany
EU
Italy