CombiWord is a free educational game app developed by Genius Games for Android devices. The game is designed to help players learn compound words in an interactive and engaging way. The objective of the game is to guess the compound word by looking at two images.

The game offers different levels of difficulty, and players can unlock each level by completing the previous one. The app also provides simple English vocabulary word lists that help players to guess popular words.

CombiWord has a 2-picture 1-word activity, where players have to correctly arrange the letters to form a word that describes the shown picture. The letters from the word are missing and shown with an underscore, and players have to select the correct letter from the given alphabets. If players select the wrong alphabet, the game prompts them to try again. On the correct answer, players can click on the 'Continue' button to try the next quiz.

Overall, CombiWord is a fun way to learn compound words and improve English vocabulary. It is a great app for children and adults who want to learn new words in an interactive way.