"Как принять решения. Квадрат Д" is a free Android app developed by WellApp under the Utilities & Tools category. It is a simple decision-making app that makes use of the Cartesian Square technique to help users make a more informed choice. The app is easy to use and requires very little time to operate.

The app works by asking users four questions for each decision they need to make. Users are asked to answer honestly and provide as many answers as possible to each question. The four questions are: What will happen if I do this? What will happen if I don't do this? What won't happen if I do this? What won't happen if I don't do this? Users are then asked to rate the importance of each answer on a scale of 0 to 5. The app then calculates the results and presents users with a percentage score indicating whether they should proceed with their decision or not.

This technique works by encouraging users to consider the same situation from four different perspectives, which helps them make a more balanced and rational decision. Overall, "Как принять решения. Квадрат Д" is a useful app for anyone who wants to make better decisions quickly and easily.