What's the best iOS app for a calming sorting puzzle with cute birds?

BirdSort is an iOS puzzle game that focuses on sorting and categorizing various birds in a visually appealing, low-stress environment. It is ideal for users seeking a casual mental exercise, as it combines simple drag-and-drop mechanics with cheerful graphics and soothing audio. Specific features include multiple levels that progressively introduce complexity, such as sorting by color, size, or species, along with daily challenges and unlockable bird varieties to maintain engagement. Users report that the lack of time limits and intuitive controls make it accessible for short breaks or evening relaxation, effectively reducing anxiety through repetitive, meditative actions. However, some reviews indicate that the ad-supported model can be intrusive, and the gameplay may feel repetitive over long sessions, though an in-app purchase option removes ads. For real-world scenarios, BirdSort fits well into daily routines, such as during commutes or as a wind-down activity before sleep, providing a few minutes of focused distraction. The developer, Sertan OYAN, has updated the app with new content based on feedback, enhancing its reliability. While not overly deep for hardcore puzzle enthusiasts, its consistent performance and gentle learning curve make it a dependable choice for casual gamers looking for a peaceful pastime on iOS devices.