A crossword app is an app that displays a grid of black and white squares arranged in a rectangular shape. Letters are put into some white squares to form a crossword. Each word has a meaning and there is a question to be answered to complete the crossword puzzle.

When using the app, the puzzle is displayed on the screen, and the user can move within the grid to find crosswords and solve questions. Also, the user can click on a specific square to get help or a hint in case of not being able to solve the crossword puzzle.

Some apps provide additional features such as creating or uploading their own puzzle, and sharing it with others. Some applications can also allow the user to create a crossword manually or automatically using the words that he enters in the application.

Crossword application is an entertaining and educational application used to improve language skills, stimulate the mind, and develop concentration and memory.