스마트 이야기독서 3A단계 is an Android app developed by 교원구몬. It falls under the category of Education & Reference and is available for free. The app aims to make reading the Smart Story Reading Book an enjoyable experience by incorporating digital activities.

One of the main features of the app is the "Find the Different Picture" game. Users can enjoy searching for the incorrect picture from scenes mentioned in the book. After completing the game, they can read the story again and reflect on its plot.

Another feature is the "Character Puzzle," where users can complete puzzles while considering the emotions of the characters in the story. Upon completing the puzzle, they receive a card with a message related to character development.

The app also includes a "Word Extraction Game" to test users' understanding of the vocabulary they have learned from the book. Solving the quiz questions in an engaging manner helps improve their vocabulary.

Overall, 스마트 이야기독서 3A단계 offers interactive digital activities to enhance the reading experience of the Smart Story Reading Book.