A free program for Android, by Better Multiplayer Games.

The best way to improve your vocabulary and enhance your mind is to exercise them with brain games. This game is just that, a crossword game for the brain. 

If you’re new to the game, here’s how it works: There’s a grid of letters, you must find and stack words in order to solve the puzzle. Each word you find will be added to the grid, along with its pronunciation and translation. 

You can use the hints or skip the puzzle if you’re stuck. If you’re really stuck, you can try sliding your finger over the letters to see what the word might be.