PaperCheck, founded in 2024, is an AI-powered academic proofreading platform designed to help students confidently submit high-quality work and optimize their chances of achieving the best possible grades. Featured in Zuger Zeitung and other publications, PaperCheck delivers precise feedback on structure, language, and clarity. Its key features include argument analysis to strengthen reasoning, a citation checker to ensure accuracy, and logical error detection to maintain consistency. The platform also supports efficient task planning and helps students prepare for thesis defenses with tailored practice questions and actionable feedback. Affordable and fast, PaperCheck empowers students to submit their academic work with confidence, knowing that no critical errors have been overlooked.