Hindi - English Dictionary, developed by ProDict, is a simple, fast, and offline dictionary for Android devices. With over 135,252 words, it offers a comprehensive vocabulary for both languages. The dictionary also includes a vocabulary trainer, which makes it easier to learn new words.

One of the standout features of this dictionary is its offline functionality, which means that users do not require an internet connection to use it. The app also offers an instant start and search feature, allowing users to find words quickly. Additionally, users can listen to the pronunciation of words, add words to their personal dictionary, and check their search history. The app also includes a feature to find words copied from the clipboard, change font size and color, and has a user-friendly interface.