ok Spanish is a comprehensive Android app designed for anyone looking to expand their Spanish vocabulary at their own pace. With over 7,000 common Spanish words, this app serves as a quick and efficient Spanish vocabulary builder, reference dictionary, and word-a-day app all in one.

The app introduces the user to a new word every day by default. To enhance one's vocabulary, the app uses a spaced repetition system (SRS) to keep track of the words the user has been exposed to and tests them through quizzes, which have been scientifically proven to optimize memorization and retention of learned vocabulary.

Moreover, the app also functions as a straightforward reference English dictionary app with an inbuilt search function. The best part? The app is entirely free to use!