Recommended if you like this: Light Up from Simon Tatham's Portable Puzzle Collection[1]. The UI is not as polished, but the collection includes a great number of other puzzles, and has iOS[2] and Android[3] ports. [1] http://www.chiark.greenend.org.uk/~sgtatham/puzzles/js/light... [2] http://hewgill.com/puzzles/ [3] https://chris.boyle.name/projects/android-puzzles/
[1] http://www.chiark.greenend.org.uk/~sgtatham/puzzles/js/range...