HanziCraft is a free dictionary that can help you understand simple decompositions of Chinese characters. The site will indicate the radicals that make up each character, pronunciation clues, and example words that contain the character. It’s probably a good idea to combine HanziCraft with the Zhongwen Chrome Extension because many of the word lists do not have pinyin or English translations.
Hanzicraft is a simple site, developed and maintained by one person (Niel de la Rouviere). Most of the information is compiled from other sites that have done extensive research. Its interface is more intuitive compared to MDBG and Zhongwen, but if you are looking to purchase the mobile app you may want to look into other options. You can try Outlier Linguistics, a Pleco add-on, or YellowBridge, a dictionary website that includes similar features and more.