Booktranslate allows you to pay attention to the words you really need.

You can add the words while reading the book and translate them immediately using automatic translation. These words will be stored in your book and you can always find it using fast search function. You can add multiple books, sorting words and word combinations by topics so you can easily reach the word from a particular book. For example you are a pasta lover and you want to remember a dozen of italian terms, or you love to read english novels. So you just need to go to one of your books to search for a necessary word.

App features:

◦ Focus on what you need - BookTranslate allows you to pay attention to the words you really need.
◦ Organize your words - it's easy to create multiple dictionaries and sort the words by topics or languages.
◦ Choose your language - choose from many different languages that you can translate from and to.
◦ Add word combinations - you can add not only words but also word combinations and translate them with automatic translation or manually.
◦ Learn pronunciation - you can also add transcription if you need it.
◦ Find a word quickly - quick search function with automatic suggestions.

Note:

BookTranslate is free to download and use and has a limit of two books and 20 words in each. To get an unlimited number of books and words you need to upgrade your app from the info screen.