LengthCompare is a clean perception game about judging relative length. Several lines appear across the screen, and each round asks you to tap either the longest or the shortest one. Choose correctly to score. Choose wrongly and you earn a mistake. Three mistakes end the game. Early levels leave clear gaps between line lengths, but higher scores shrink those differences until every option looks almost the same. Trust careful comparison rather than first impressions, read the prompt every round, and lock in your answer with confidence. Simple rules, rising difficulty, and a true eye for scale.