Tagalog Word Book is a free Android application developed by App Books that offers an offline English to Tagalog (Filipino) dictionary with pictures and category wise sorting of all words. With a user-friendly interface, the app provides voice pronunciation of words, auto-search history, and the option to search from microphone or voice search. The app has twenty-one category word groups, including fruits, vegetables, animals, foods, body parts, family and relationship, numbers, clothes, colors, and shapes. The app also offers the option to bookmark and create a favorite list of words and has a night mode reading option.

Overall, Tagalog Word Book is a useful application for anyone wanting to learn or improve their Tagalog vocabulary. The app's offline feature makes it easy to use without an internet connection, and the voice pronunciation of words is helpful for correct pronunciation. The app's different categories of word groups make it easy to find specific words, and the bookmark and favorite list options allow users to save important words for future reference. The app's user-friendly interface makes it easy to navigate and use.