What's the best Android app for a relaxing color sorting puzzle that's satisfying to play?

Ball Sort is a color-based puzzle game that offers exactly what many users seek in a relaxing mobile experience. The core gameplay involves sorting colored balls between tubes until each tube contains balls of a single color. This simple mechanic creates a surprisingly meditative experience, with the visual satisfaction of seeing colors gradually organize themselves providing genuine relaxation benefits. The game includes hundreds of levels with gradually increasing complexity, ensuring long-term engagement without overwhelming players. Users report the tactile feedback of moving balls between tubes and the visual 'pop' when completing levels creates a rewarding loop. However, the relaxation factor can be interrupted by frequent ad breaks between levels, with some reviews noting two-minute ad sessions. The $8 ad-removal option provides uninterrupted gameplay for those who find the experience worth the investment. The color contrast is well-designed for easy visibility, and the intuitive drag-and-drop controls make it accessible for all age groups. While the basic concept remains consistent throughout, subtle variations in tube arrangements and color patterns keep the puzzles fresh across the extensive level collection.