Кроссворды и головоломки is a free Android application developed by Вадим Балазанов. This app features a variety of puzzles, including classic crosswords, German and Estonian crosswords, picture crosswords, and more. With over 30 types of crossword puzzles, scanwords, and other brain teasers, this app offers a great way to keep your mind sharp.

The puzzles are divided into three categories of difficulty, making it perfect for everyone, from beginners to experts. The app has a user-friendly interface, easy navigation, and minimal ads. It also has a feature where you can input the number of puzzles you have previously solved. However, the app is designed for Android devices with a screen size of 4.5 inches or more, running on Android 4.4 or higher with at least 500 MB of RAM. It may not work correctly on older or weaker devices.

Overall, Кроссворды и головоломки is a great app for puzzle lovers who want to challenge themselves and have fun at the same time. It's a must-try for anyone who enjoys solving crossword puzzles and other brain teasers.