A free app for Android, by Word Games Studio.

If you’re in for some logical gameplay to test your vocabulary skill, you’re at the right place! Word Master will bring your word mastery to the test by letting you create words out of the given letters in each level. Find as many words as you can to progress into the game.

Designed to challenge your vocabulary, Word Master features hundreds of levels for you to clear, making it an awesome game to play. It also lets you take your time as the game is not time-bound. Plus, it works offline so that you can use the app anytime, anywhere.