Number Chain - Logic Puzzle is a free brain training game available on iPhone, designed to enhance memory and concentration through engaging number puzzles. This game combines elements from Sudoku and Hidato, providing players with endless challenges that can be played anytime and anywhere. The objective is to create a chain of numbers in a specified order, making it accessible for players of all skill levels with varying degrees of difficulty.

The gameplay involves connecting numbers by dragging them horizontally, vertically, or diagonally, offering a simple yet addictive mechanic. Users can select their starting number and choose to connect in either increasing or decreasing order. With features like a night mode, a visually appealing Cherry Blossom Pink theme, and daily puzzles, Number Chain ensures a fresh and enjoyable experience. It is also playable offline, making it a convenient option for on-the-go entertainment.