Every Sudoku app treats you like a vending machine spits out puzzles, doesn't know you exist, guilt-trips you the moment you miss a day.
Ninesmith has a coach character, the Smith, who actually watches how you play and reflects it back in plain language never shames a broken streak. Free tier includes full classic + daily play and a pattern trainer that teaches real solving techniques (X-Wings, swordfish), not just hints. No ads, calm themes, built local-first with no backend.
