Not Evil Sudoku

Not Evil Sudoku is a clean, minimalistic, offline, and totally ad-free sudoku app for your iPhone. Tired of the spammy sudoku apps playing ads every few moves? This app is for you. Just a beginner? No problem, turn on move by move validation in the settings to help you along. Features: - Fully offline - 3 difficulty modes: easy, medium, hard - Theming: Change the color of the numbers - Take notes while you puzzle over what number to select - Undo moves you no longer like - Hints if you need them...