Atasözleri ve Deyimler is a free Android application developed by Orhan Demirdağ. As the name suggests, the app is a comprehensive collection of Turkish proverbs and idioms. The app is divided into two sections: Atasözleri and Deyimler. The Atasözleri section features 200 metaphoric proverbs with their meanings and 200 multiple-choice test questions with real-life examples to reinforce the learning. The Deyimler section features 200 metaphoric idioms with their meanings and 200 multiple-choice test questions with real-life examples to reinforce the learning. The app also features a progress tracking system that changes the color of the test button when all questions are answered correctly.

The app is easy to navigate and the test questions are challenging yet fun. The app is a great resource for anyone who wants to learn and improve their knowledge of Turkish proverbs and idioms. The app is free to use and does not require an internet connection, making it accessible to everyone.