A Word A Day is a free Android application developed by INAPP under the category of Education & Reference. It provides a new English word every day from the Merriam-Webster dictionary, along with its pronunciation through Google voice. The app also offers the podcast explanation of the word and allows users to share its meaning with friends.

One of the most useful features of A Word A Day is the availability of the home screen widget. This widget allows users to access the word of the day and its meaning without even opening the app. Moreover, the app is compatible with Android 9.0 and above.

The recent updates have added more features to the app, including a transparent widget, the ability to take quizzes with only favorite words, and the option to long-press and copy the word in the description to look it up with the ColorDict dictionary. Additionally, users can play audio with changing playback speed and listen to the word itself. Lastly, the backup and restore feature for data and audio files on Dropbox is also available.

Overall, A Word A Day is an excellent tool for English learners who want to improve their vocabulary.